Recently Posted
-
Diabetic Retinopathy Screening and Treatment: a Complete Guide
Maria Znamenska
Diabetic retinopathy screening and treatment: a complete guide
Table of Contents
- What are the diabetic retinopathy screening methods?
- Fundus images in DR screening
- Can OCT detect diabetic retinopathy?
- What does diabetic retinopathy look like on OCT?
- What is optimal diabetic retinopathy screening frequency?
- What is the best treatment for diabetic retinopathy?
- Diabetic retinopathy management: key takeaways
Diabetic retinopathy (DR) remains the leading cause of irreversible vision loss among working-age adults worldwide. According to the International Diabetes Federation (IDF), one in three patients with diabetes shows signs of DR, and 10% develop diabetic macular edema (DME). Early diagnosis, systematic screening, and individualized monitoring are essential to prevent vision loss.
What are the diabetic retinopathy screening methods?
Modern methods of DR screening include:
- Telemedicine platforms – enable automated transmission of fundus images
- Mobile fundus cameras – Wi-Fi–enabled devices for field examinations
- Smartphone-based platforms – use specialized lenses for retinal imaging
- Optical coherence tomography (OCT) – used to detect early retinal changes and diabetic macular edema, complementing fundus photography
- AI-based systems – FDA-approved solutions for automated image analysis
Methods of DR screening In practice, these methods are often combined. For example, patients may undergo fundus photography, after which images are sent to telemedicine centres and analysed by AI algorithms. More complex cases are then referred to ophthalmologists.
DR screening is frequently incorporated into annual diabetes check-ups conducted by primary care physicians trained in basic fundus photography. This approach, already successfully implemented in several EU countries, has reduced the incidence of severe DR.
AI Decision Support for DR analysis
Try for free
Innovations in DR screening have broadened access for rural residents, older adults, and individuals with limited mobility. Integration into national e-health systems enables automated reminders and electronic medical record linkage, incorporating laboratory data (HbA1c, blood pressure) alongside retinal images.
Fundus images in DR screening
Fundus photography is the optimal primary screening method due to its high diagnostic yield, cost-efficiency, simplicity, and ability to integrate with AI and telemedicine solutions.
It enables detection of microaneurysms, hemorrhages, exudates, and neovascularization, often before symptoms arise. National screening programs rely heavily on digital fundus imaging, which, when combined with AI, provides an efficient platform for mass DR detection.
Advances in fundus imaging for diabetic retinopathy have improved efficiency. Modern non-mydriatic cameras deliver high-quality images without pupil dilation, while automated image analysis supports rapid identification of suspicious cases. Cloud storage and telemedicine platforms facilitate remote evaluation, increasing coverage in regions with limited ophthalmology services.
Next-generation wide-field cameras further enhance detection by capturing peripheral pathology. Some devices also generate automated annotations, reporting lesion type, DR stage, and DME presence, thereby standardizing interpretation and expediting clinical decision-making.
Diabetic retinopathy detection from fundus images Can OCT detect diabetic retinopathy?
Yes. OCT can detect early structural changes in the retina and is increasingly used to complement standard diabetic retinopathy screening.
- Role in DR screening – While not a primary screening tool, OCT is now widely applied alongside fundus photography. It is especially valuable for detecting early diabetic macular edema (DME) and subtle morphological changes in the central retina not visible during ophthalmoscopy.
- High-resolution imaging – OCT visualizes changes such as photoreceptor layer disruption, subclinical intraretinal fluid, neurosensory retinal thickening, and foveal edema. These findings often appear before clinically significant macular edema.
- Differential diagnosis – OCT also helps identify other causes of vision loss in diabetic patients, for example, ruling out age-related macular degeneration.
- Clinical evidence – Studies confirm that combining OCT with fundus photography increases diagnostic accuracy for DME. Experts therefore recommend this approach for patients with long-standing diabetes, poor glycemic control, or vision complaints.
What does diabetic retinopathy look like on OCT?
On OCT, diabetic retinopathy (DR) can appear as a combination of retinal structural damage, fluid accumulation, and microvascular changes that may not be visible on fundus photography.
Typical OCT findings in DR include:
- Photoreceptor damage – loss of outer retinal layers, especially the ellipsoid zone
- Intraretinal hyperreflective foci, hard exudates
- Microaneurysms – visible as small, round changes within the retina
- Retinal thickness changes and neuroepithelial layer atrophy
- Diabetic macular edema – with intraretinal hyporeflective cystoid spaces and neuroepithelial swelling
- Subretinal fluid – resulting from increased vascular permeability
- DRIL – disorganization of inner retinal layers, associated with poor prognosis
- Epiretinal membranes – potential precursors to retinal detachment
AI Decision Support for DR analysis
Try for free
Advanced findings
OCT can also reveal proliferative changes and tractional zones, which may progress to tractional retinal detachment.OCTA insights
Beyond structural analysis, OCT angiography (OCTA) allows visualization of retinal microvascular changes without the contrast injection. OCTA helps identify areas of neovascularization, capillary network disruption, and the degree of macular ischemia.Diabetic retinopathy (hyperreflective foci, moderate destruction of the ellipsoid zone and RPE), diabetic macular edema (neuroepithelium edema, intraretinal cystic cavities), epiretinal membrane What is optimal diabetic retinopathy screening frequency?
The screening frequency for diabetic retinopathy is tailored to diabetes type, disease stage, and risk factors:
Type 1 diabetes
- First screening: 3–5 years after diagnosis (due to onset in children and young adults)
- Then annually, if no DR is detected
- If DR is present, frequency depends on severity
Type 2 diabetes
- Screening at diagnosis, as DR may already be present.
- If no DR, repeat every 1–2 years.
Patients with confirmed DR
- No visible DR, mild non-proliferative diabetic retinopathy (NPDR), no DME — every 1–2 years
- Moderate NPDR — every 6–12 months.
- Severe NPDR — every 3 months.
- Proliferative DR (PDR) — monthly, with regular OCT monitoring of the macula.
- DME — monthly if center-involving, every 3 months if not.
Pregnant women with type 1 or type 2 diabetes
- Screening before conception or in the first trimester, with follow-up each trimester and postpartum
- Screening is not required for gestational diabetes without pre-existing diabetes
Post-treatment patients (laser or vitrectomy)
- Typically, every 3–6 months during the first year, individualized based on retinal stability
Diabetic retinopathy (hyperreflective foci, microaneurysms, destruction of the ellipsoid zone and RPE), diabetic macular edema (neuroepithelial swelling, intraretinal cystic cavities), epiretinal membrane. Monitoring of diabetic retinopathy progression
Ongoing diabetic retinopathy monitoring is essential to detect early signs of progression and guide treatment decisions. A key focus in monitoring is diabetic macular edema (DME), which represents fluid accumulation in the macula due to leakage from damaged retinal vessels. DME is a common complication of DR and the leading cause of vision loss in diabetic patients. OCT plays a central role in detecting DME and identifying structural changes that indicate disease progression.
OCT biomarkers in DME
OCT enables precise visualization of retinal layers with micron resolution, confirming DME presence and providing prognostic biomarkers for treatment selection and monitoring.
The main OCT biomarkers in DME include:
- Cystoid hyporeflective intraretinal spaces – usually in the inner nuclear layer (INL) or outer plexiform layer (OPL). Their number, size, and location correlate with edema severity. Large or confluent spaces may indicate chronicity and a worse prognosis.
- Subretinal fluid – accumulation between the neurosensory retina and retinal pigment epithelium. Often associated with a better visual prognosis, but requires close monitoring and consideration in anti-VEGF therapy.
- Central macular thickening – a key marker of treatment effectiveness and disease activity.
Diabetic retinopathy (hyperreflective foci, hard exudates), diabetic macular edema (neuroepithelial swelling, intraretinal cystic cavities). OCT red flags in DR progression
Beyond DME, OCT helps identify broader signs of DR worsening that require therapy reassessment:
- Progressive central macular thickening despite treatment
- Increase in intraretinal or subretinal fluid, or enlargement of cystoid spaces
- New hyperreflective foci, reflecting inflammatory activity (these may precede hard exudates or RPE changes)
- Development or progression of disorganization of inner retinal layers (DRIL), an independent predictor of poor prognosis, even when orphological improvement is seen on OCT
- Ellipsoid zone disruption, indicating photoreceptor damage
- Signs of macular ischemia, although better evaluated with OCTA, indirect signs on OCT may include thinning of the inner retinal layers.
- Tractional changes, such as epiretinal membranes, inner retinal stretching, or macular traction
Diabetic retinopathy (hyperreflective foci, hard exudates, destruction of the ellipsoid zone and RPE, disorganisation of the retinal inner layers (DRIL)), Diabetic macular edema (neuroepithelial swelling, intraretinal cystic cavities), subretinal fluid. The appearance of these OCT features should prompt clinicians to reconsider therapy, whether by switching anti-VEGF agents, introducing steroids, using combination therapy, or referring patients for surgical evaluation when traction is present.
Diabetic retinopathy (hyperreflective foci, hard exudates, destruction of the RPE), Diabetic macular edema (neuroepithelial swelling, intraretinal cystic cavities), subretinal fluid. What is the best treatment for diabetic retinopathy?
The treatment of diabetic retinopathy is based on a comprehensive approach that takes into account not only the disease stage, but also individual patient characteristics, OCT findings, comorbidities, and prognostic biomarkers. Modern strategies combine preventive, pharmacological, and surgical methods, as well as personalized medicine tools based on retinal imaging.
Criteria for treatment selection
The choice of therapy is guided by the following parameters:
- DR stage – non-proliferative, proliferative, with or without DME
- Form of macular edema – focal, diffuse, with or without subretinal fluid
- Presence of DRIL, EZ disruption, ischemic changes on OCTA
- Response to previous treatment – anti-VEGF, steroids, laser
- Comorbidities – renal insufficiency, hypertension, poor adherence
For low-risk patients, observation or focal laser may be sufficient. Patients with significant DME usually require anti-VEGF or steroid injections. Those with proliferative DR often undergo panretinal laser photocoagulation or vitrectomy.
Diabetic retinopathy treatment methods
The main treatment options for diabetic retinopathy include pharmacotherapy, laser therapy, surgical intervention, and personalized approaches based on OCT.
1. Pharmacotherapy: anti-VEGF and steroids
Anti-VEGF agents such as aflibercept, ranibizumab, and bevacizumab are the first-line therapy for diabetic macular edema. They are especially effective in patients with pronounced edema and without ischemia.
New drugs with extended duration of effect, including port delivery systems, are becoming available.
Steroids are used when DME is persistent, when patients do not respond to anti-VEGF therapy, or in cases with an inflammatory phenotype.
2. Laser therapy
Injections have largely replaced laser therapy in the treatment of DME. However, panretinal photocoagulation remains the standard treatment for proliferative DR.
Subthreshold micropulse laser is increasingly applied for focal edema, as it minimizes tissue damage.
3. Surgical treatment
Vitrectomy is recommended in cases of tractional macular edema, vitreous hemorrhage, or retinal detachment.
4. Personalization with OCT
Modern treatment protocols use OCT biomarkers to tailor therapy and improve prognosis.
AI-based systems can also generate treatment plans from OCT data, which is particularly valuable in regions with limited access to retina specialists.
Patient education and multidisciplinary care
DR treatment outcomes strongly depend on adherence. Patients must be informed about the need for regular injections, monitoring, and systemic control. Coordinated care involving ophthalmologists, endocrinologists, and family doctors helps maintain stable glycemic control and slows DR progression.
Diabetic retinopathy management: key takeaways
Diabetic retinopathy is a progressive disease, but modern diagnostics and treatments make it possible to preserve vision and improve outcomes. OCT and OCTA have become essential tools for early detection, risk assessment, and personalized therapy planning. Effective management combines pharmacotherapy, laser treatment, surgery, and patient education. Multidisciplinary care and strong patient adherence remain crucial for long-term success. With timely monitoring and tailored treatment, the progression of diabetic retinopathy can be significantly slowed.
-
Altris AI introduces Flags to instantly identify OCT scans with specific retina pathologies or biomarkers
Maria Znamenska, CMO
Altris AI introduces Flags to instantly identify OCT scans with specific retina pathologies or biomarkers
Chicago, IL – August 26, 2025 – Altris AI introduces an advanced flagging system to search through the large volumes of OCT scans, including historical data.
Now, with Altris AI’s new functionality, eye care professionals can instantly identify OCT scans with specific retina pathologies or biomarkers from the list of over 70 conditions. For example, clinicians can locate OCT scans of all patients with a Soft Drusen or Dry AMD, forming cohorts for clinical or research purposes.
For those who work with Geographic Atrophy biomarkers, it is also possible to exclude the presence of GA biomarkers in 1, 3,6 mm ETDRS zones to spot early development of this pathology.
The flagging system is precise and enables fast, targeted searches across historical records and large datasets – including OCT scans from different devices. This advancement supports a more efficient workflow and enhances access to critical data for both diagnostics and research.
“Flags are a clinical shortcut. Instead of manually searching through thousands of scans, you can now filter precisely for what you need—whether that’s subretinal fluid, GA progression, or early glaucoma indicators. It’s about making the data work for you.” Maria Znamenska, MD, PhD, Chief Medical Officer at Altris AI.
With flags for smart filtering, eye care specialists can:
- Track risk-related biomarkers and set reminders for patient follow-ups
- Quickly identify eligible candidates for clinical studies by searching through large volumes of data
- Confidently introduce new treatments by finding the right patient profiles
- Filter rare or complex cases to study unique combinations of pathologies and biomarkers and their progression
“Flags make it possible to build patient cohorts in minutes,” Maria Znamenska, Chief Medical Officer at Altris AI, comments on this new feature. “Whether it’s for the research or for introducing the new therapy, you now have a reliable tool to search for the right patients efficiently.
For example, the FDA has recently approved the first treatment for Macular Telangiectasia Type 2, so eye care specialists can now search through their whole patient database and find those who have this particular pathology in minutes to offer them a new treatment.”
The release of flags reinforces Altris AI’s position as a leading AI decision support platform for OCT analysis for both clinical care and research purposes. By enabling customizable filtering across over 70 pathologies and biomarkers, flags support better disease tracking, faster research, and more personalized treatment planning.
About Altris AI
Altris AI is a vendor-neutral, web-based AI Decision Support for OCT Analysis platform. It supports early diagnosis, treatment planning, and research across more than 70 biomarkers and retinal pathologies. Altris AI is used by leading clinics and research centers worldwide. -
Altris AI Achieves MDSAP Certification, Strengthening Global Presence and Clinical Credibility
Altris Inc.
22.08.20251 min.22.08.2025
Altris AI Achieves MDSAP Certification, Strengthening Global Presence and Clinical Credibility
Altris Inc., a leading AI decision support platform for OCT scan analysis, proudly announces that it has passed the Medical Device Single Audit Program (MDSAP) audit.
Based on the objective evidence reviewed, this audit enables a recommendation for Initial certification to ISO 13485:2016 MDSAP, including the requirements of Australia, Brazil, Canada, the USA, and Japan, and EU 2017/745, and that the scope was reviewed and found to be appropriate for ISO 13485:2016/MDSAP and EU MDR 2017/745.
The results of this audit are suitable for obtaining the EU MDR 2017/745 certificate, which we are currently in the process of pursuing.
ISO 13485:2016/MDSAP enables Altris Inc. to “design, manufacture, and distribute medical software for the analysis and diagnosis of retinal conditions globally.” It is recognized by leading global health regulators and signals trust and credibility to public and private hospitals, eye care networks, and optometry chains worldwide.
MDSAP Certification also opens the door for Altris Inc. to enter new international markets, including Asia-Pacific, Latin America, and additional parts of North America. The MDSAP certification allows a single regulatory audit of Altris AI’s Quality Management System (QMS) to be recognized by multiple major health authorities, including:
- FDA (United States)
- Health Canada
- TGA (Australia)
- ANVISA (Brazil)
- MHLW/PMDA (Japan)
MDSAP enforces that the Quality Management System for developing, testing, and maintaining AI Decision Support for OCT complies with international medical device standards. Altris AI Decision Support for OCT Analysis system that facilitates the detection and monitoring of over 70 retinal pathologies and biomarkers, including early signs of glaucoma, diabetic retinopathy, and age-related macular degeneration.
“Achieving ISO 13485:2016 certification under the stringent MDSAP requirements is a significant accomplishment for our team,” said Maria Znamenska, MD, PhD, Chief Medical Officer at Altris AI. “As a practicing ophthalmologist, I understand that the safety of patients is the absolute priority. Especially when implementing such an innovative technology as AI for decision support in OCT analysis. That is why we did everything possible to build quality processes that guarantee the highest level of safety for the patients.
This certification enables Altris AI to expand its presence and offer eye care specialists upgraded functions such as GA progression monitoring, flags for smart patient filtering, or automated drusen count.”
“This is more than a regulatory milestone for our team – it’s a signal to the global eye care community that Altris AI is a trusted clinical partner,” said Andrey Kuropyatnyk, CEO of Altris AI.
About Altris AI
Founded in 2017, Altris AI is at the forefront of integrating artificial intelligence analysis into ophthalmology and optometry.
The company’s platform is designed to assist eye care professionals in interpreting OCT scans with greater objectivity and make informed treatment decisions. It’s a vendor-neutral platform compatible with OCT devices from 8 major global manufacturers. With a commitment to innovation and compliance, Altris AI continues to develop solutions that set higher standards in the eye care industry and improve patient outcomes.
-
Glaucoma OCT Monitoring Guide: From Detection to Long-Term Care
Maria Znamenska
Glaucoma OCT Monitoring Guide: From Detection to Long-Term Care
Table of Contents
- Glaucoma detection: why early diagnosis is critical
- How to detect glaucoma in early stages: key approaches
- Advanced imaging for glaucoma: OCTA
- OCT glaucoma monitoring after diagnosis
- Additional tools for monitoring glaucoma treatment
- Glaucoma OCT: the foundation of long-term glaucoma care
Optical Coherence Tomography (OCT) has fundamentally changed glaucoma diagnostics over the past two decades. It enables non-invasive, micron-level imaging of retinal microstructures and provides objective measurements of the retinal nerve fibre layer (RNFL), ganglion cell complex (GCC), and optic nerve head (ONH) parameters. Moreover, the advent of OCT angiography (OCTA) has introduced a new dimension in assessing microcirculation—complementing structural analysis and potentially predicting glaucoma progression.
Today, OCT is the standard for early detection, monitoring, and risk stratification of glaucoma progression, as recognised in international clinical guidelines. When combined with functional tests, tonometry, and anterior chamber angle assessment, OCT becomes the foundation for personalised glaucoma management.
AI Decision Support for OCT
Enhance glaucoma monitoring with AI
Glaucoma detection: why early diagnosis is critical
Early glaucoma diagnosis is vital, as optic nerve damage caused by the disease is irreversible. Many patients seek care only after significant vision loss has occurred, at which point treatment may slow progression but cannot restore lost function. This is why ophthalmologists emphasise the importance of glaucoma detection at preclinical or pre-perimetric stages.
How does OCT help in early glaucoma detection?
OCT provides high-resolution imaging of the retina and optic nerve head. Unlike subjective functional tests, OCT delivers objective, quantitative data on ganglion cells, nerve fibre layers, and the neuroretinal rim, enabling recognition of even subtle structural changes.
Recent OCT models go further, allowing detailed visualisation of the lamina cribrosa, a structure known to be altered in glaucoma. Today, OCT is recognised as a key diagnostic tool in the guidelines of both the European Glaucoma Society and the American Academy of Ophthalmology.
How to detect glaucoma in early stages: key approaches
Early glaucoma detection relies on evaluating structural and functional parameters of the eye, supported by advanced imaging techniques. The three main parameters assessed with glaucoma OCT are:
- Ganglion Cell Complex (GCC) thickness and asymmetry
- Retinal Nerve Fibre Layer (RNFL) thickness
- Optic nerve head parameters with the DDLS scale
In addition, OCT Angiography (OCTA) provides complementary insights into ocular microvasculature that may indicate early glaucomatous damage.
Glaucoma detection parameter 1: GCC thickness and asymmetry
One of the most sensitive preclinical biomarkers of glaucomatous damage is thinning of the ganglion cell complex (GCC), which includes the ganglion cell layer (GCL), inner plexiform layer (IPL), and macular RNFL (mRNFL). It is assessed through macular OCT scans. Damage in this area is particularly critical, as 50–60% of all ganglion cells are concentrated within the central 6 mm zone.
Assessing asymmetry between the superior and inferior halves of the macula within the GCC is a key diagnostic indicator. Studies show that minimum GCC thickness and FLV/GLV indices (Focal Loss Volume / Global Loss Volume) are predictors of future RNFL thinning or emerging visual field defects. Asymmetry maps significantly ease clinical interpretation.
A newer approach—vector analysis of GCC loss—also allows clinicians to visualise the direction of damage, which often correlates with future visual field defects.
Glaucoma detection parameter 2: RNFL thickness analysis
RNFL analysis is among the most widely used glaucoma diagnostic methods. The RNFL reflects the axons of the ganglion cells and is readily measured in optic nerve scans. Temporal sectors are the most sensitive and often show the earliest changes.
Even when the overall thickness appears normal, localised defects should raise suspicion. Sectoral thinning of ≥5–7 μm is considered statistically significant. Age-related RNFL decline (~0.2–0.5 μm/year) must also be considered.
Glaucoma detection parameter 3: optic nerve head parameters and the DDLS scale
Evaluating the optic nerve head (ONH) is essential. OCT enables automated assessment of optic disc area, cup-to-disc ratio (C/D), cup volume, rim area, and the lamina cribrosa.
The Disc Damage Likelihood Scale (DDLS) classifies glaucomatous ONH changes based on the thinnest radial rim width or, if absent, the extent of rim loss. Unlike the C/D ratio, DDLS adjusts for disc size. When combined with OCT, DDLS significantly enhances objective clinical assessment.
In high myopia, automatic ONH segmentation often misclassifies anatomy. Here, newer deep learning–based segmentation models improve accuracy.
Advanced imaging for glaucoma: OCTA
OCT Angiography (OCTA), an advanced glaucoma OCT technique, provides unique insights into ocular circulation. It enables evaluation of:
- Vessel density in the peripapillary region
- Optic nerve and macular vascularisation
- Retinal versus ONH perfusion in both eyes
Studies confirm that reduced vessel density correlates with RNFL loss and visual field deterioration, and often precedes both.
OCT glaucoma monitoring after diagnosis
Glaucoma can progress even with stable intraocular pressure (IOP), making regular structural assessment of the optic nerve and inner retina crucial for therapy adjustment.
Glaucoma OCT is not only a diagnostic tool but also the primary method for monitoring glaucomatous damage. Unlike functional tests, OCT can detect even minimal RNFL or GCL thinning months or even years before visual field loss appears. With serial measurements and built-in analytics, OCT allows clinicians to track glaucoma progression rates and identify high-risk patients.
Methods for glaucoma progression monitoring
There are two main approaches to monitor glaucoma progression with OCT:
Method 1: event-based analysis
This method compares current scans with a reference baseline, identifying whether RNFL or GCL thinning exceeds expected variability.
📌 Example: Heidelberg Eye Explorer (HEYEX) highlights suspicious areas in yellow (possible loss) or red (confirmed loss).
Limitations include sensitivity to artifacts, image misalignment, and segmentation quality. A high-quality baseline scan is essential.
AI Decision Support for OCT
Enhance glaucoma monitoring with AI
Method 2: trend-based analysis
This approach accounts for time. The software plots RNFL/GCL thickness trends over time in selected sectors or globally and calculates the rate of progression.
Examples:
- RNFL thinning >1.0 μm/year is clinically significant.
- Thinning >1.5 μm/year indicates active progression.
It also accounts for age-related changes, helping differentiate physiological vs. pathological decline.
Visual assessment in glaucoma OCT
Qualitative analysis also plays an important role in detecting glaucoma progression. Key aspects include:
- Focal RNFL thinning (localised defects)
- Changes in the neuroretinal rim
- Alterations in ONH cupping
- GCL/GCIPL comparison (superior vs. inferior) on macular maps
- New segmentation artifacts (may mimic progression)
OCT glaucoma findings that indicate true progression
Five OCT findings suggest true glaucomatous progression:
- RNFL thinning >10 μm in one sector or >5 μm in several sectors
- New or worsening GCL asymmetry (yellow to red colour shift)
- Emerging or expanding RNFL defects on colour maps
- Increasing C/D ratio with concurrent rim thinning
- New localised areas of vessel density loss on OCTA
Particular attention should be paid to the inferotemporal and superotemporal RNFL sectors, where 80% of early changes occur.
Frequency of glaucoma OCT monitoring
According to the AAO and EGS, the recommended frequency for OCT glaucoma monitoring is:
- High-risk patients: every 6 months
- Stable patients: once a year
- For trend analysis: at least 6–8 scans over 2 years to ensure statistical reliability
Looking ahead, broader use of AI for glaucoma is expected to support earlier and more accurate detection, while also reducing false positives.
Additional tools for monitoring glaucoma treatment
While glaucoma OCT is essential for detecting structural changes, a comprehensive glaucoma assessment requires a multimodal approach. Additional tools include perimetry, tonometry, optic disc fundus photography, and gonioscopy.
Perimetry (visual field testing)
Functional assessment of the optic nerve remains crucial. Standard Automated Perimetry (SAP), most often performed with Humphrey Visual Field Analyzer protocols (24-2, 30-2, 10-2), is the most widely used method.
Key indices:
- MD (mean deviation): average deviation from normal values
- PSD (pattern standard deviation): highlights localised defects
- VFI (visual field index): summarises global visual function; useful for tracking glaucoma progression
- GHT (glaucoma hemifield test): automated analysis of field asymmetry
📌 Important: In 30–50% of cases, structural changes such as RNFL thinning on OCT precede visual field defects; in others, functional loss appears first. Best practice relies on integrated OCT and perimetry to correlate damage location and monitor glaucoma progression more precisely.
Combined OCT and perimetry remains the gold standard for progression monitoring.
Tonometry
Intraocular pressure (IOP) is the only clearly modifiable risk factor associated with both glaucoma onset and progression.
- Goldmann applanation tonometry remains the gold standard.
- A single IOP reading is insufficient — diurnal fluctuations are an independent risk factor, particularly in normal-tension glaucoma.
Optic disc fundus photography
Although subjective, fundus imaging remains valuable for documenting glaucomatous changes, especially in borderline cases. Unlike OCT, it does not provide quantitative data but helps visualise morphology over time.
What to assess:
- Progressive disc cupping
- Changes in neuroretinal rim shape or colour
- Disc margin haemorrhages (linked to faster RNFL thinning and visual field loss)
- Inter-eye comparisons
Gonioscopy
Gonioscopy evaluates the anterior chamber angle and helps exclude angle-closure, pigmentary, or pseudoexfoliative glaucoma. It also identifies:
- Neovascularisation
- Trabecular meshwork abnormalities
- Other angle anomalies
Patient education: a key to successful glaucoma management
Accurate glaucoma detection and therapy are not enough; adherence to monitoring and treatment is equally critical.
The challenge:
- Early-stage glaucoma is asymptomatic.
- Many patients underestimate its seriousness, leading to poor compliance, missed follow-ups, and discontinuation of therapy.
The goals of patient education:
- Explain that glaucoma progresses silently but can lead to irreversible blindness if untreated.
- Use real-life examples (before/after OCT scans, visual field comparisons) to illustrate progression.
- Teach patients to recognise warning signs (vision changes, eye pain).
- Visualise disease progression with AI tools showing RNFL loss and future risk.
Educational resources may include:
- Printed brochures in patient-friendly language
- Videos featuring OCT images with explanations
- Doctor–patient in-clinic discussions
- Telemedicine platforms with reminders and follow-up prompts
📌 According to the AAO, patients who understand glaucoma are 2.5 times more likely to adhere to treatment and attend check-ups.
Glaucoma OCT: the foundation of long-term glaucoma care
Glaucoma OCT now plays a central role in both diagnosis and monitoring. Its ability to detect subtle structural changes before measurable functional loss makes early intervention possible and increases the chances of preserving vision.
But technology alone is not enough. Accurate interpretation, combined with strong patient education, is essential. When patients understand their disease and the role of glaucoma OCT in treatment, adherence improves and outcomes are better.
OCT is not just a diagnostic device; it is the cornerstone of an integrated glaucoma management strategy, from initial screening to long-term monitoring and treatment optimisation.
-
Inside the Power Hour: Altris AI’s Take on AI Innovation in Eye Care
Grant Schmid
Inside the Power Hour: Altris AI’s Take on AI Innovation in Eye Care
Our Vice President of Business Development, Grant Schmid, took part in The Power Hour podcast to discuss how AI and automation are shaping the future of patient experience. We turned that conversation into an interview and pulled out the most compellinsubtle anatomical g insights on tech-enabled practice growth and innovation in eye care.
Eugene Shatsman: Can you start by introducing Altris AI and what problem you’re solving in eye care?
Grant Schmid: Altris AI was founded in 2017 in Chicago, with the University of Chicago as our first investor. But most of our team — and the heart of our development — is based in Ukraine.We focus on AI for OCT analysis. Our goal is to provide decision support that helps identify over 70 different pathologies and biomarkers, no matter what OCT device a clinic uses. The idea is to speed up image interpretation, ensure nothing is missed, and support doctors in delivering top-quality care.
Eugene: What initially inspired the development of Altris AI?
Grant: Our co-founder is a retina specialist from Kyiv. She wanted a way to improve the referral process and increase the OCT knowledge of those referring patients to her. That’s how the idea of a clinical decision support platform was born.We actually started with an educational OCT app that you can still download — many doctors come to our booth at trade shows not realizing that the app is also part of what we’ve built.
Eugene: What does a typical OCT workflow look like with and without Altris AI?
Grant: In many modern practices, every patient now gets an OCT. It’s used to screen for diseases like AMD, glaucoma, or diabetic retinopathy. But subtle anatomical differences can confuse even experienced clinicians.Learn more about Altris AI’s Decision Support for OCT analysis
With Altris AI, the doctor gets an analysis almost immediately — color-coded overlays, pathology markers, optic disc assessments, all in one place. This speeds up the review process and supports clinical decision-making without disrupting workflow.
Eugene: What do you say to clinicians who say, “I already know how to read OCTs — why do I need AI?”
Grant: Many doctors are confident in interpreting OCTs, and that’s great. But the value isn’t just in identifying disease — it’s in validation and patient education.We’re not here to replace what doctors do. Altris AI validates what you already know and makes it easier to communicate with patients. We highlight what might be missed, and we provide visual tools that help explain findings clearly — which leads to better patient understanding and trust.
Eugene: Can you give an example of how this helps patient education?
Grant: Absolutely. Let’s take glaucoma. Many patients on drops don’t feel or see any change, so they think, “Why bother?” But if you can show them a progression or show that things are stable, it becomes real to them.We launched an Optic Disc Analysis feature that lets you compare up to eight past visits side-by-side. So when a patient asks, “Is this working?” you can say, “Yes, here’s the proof.” That drives adherence and builds trust.
Eugene: Are practices today ready to embrace AI-based tools? Or are they still cautious?
Grant: There’s a lot of curiosity, a lot of interest. Some are still figuring out how to implement AI in a way that makes sense for them.But AI is everywhere now — whether it’s in search engines, smartphones, or how we shop. Patients expect that kind of intelligence in their healthcare, too. In fact, a 67-year-old tugboat captain with AMD once called me asking about our software and offered to pay for his doctor’s subscription. That tells you how fast expectations are changing.
Eugene: Can AI actually improve the patient experience beyond just diagnosis?
Grant: Absolutely. Patients want to understand what’s happening with their health. When you can show them their scan results with overlays and simple visuals, they feel included in the process.It’s not just about detecting disease, it’s about building trust. Clear visual communication boosts confidence, reduces anxiety, and increases compliance.
Learn more about Altris AI’s Decision Support for OCT analysis
Eugene: Some fear AI will replace clinicians. What’s your perspective on that?
Grant: That’s one of the biggest myths out there. AI won’t replace clinicians — it enhances what they do.We’re not cleared to diagnose. We’re a decision-support tool. Doctors still make the final decision, but we give them more data, faster and more clearly. Human clinical judgment is still irreplaceable — we just help sharpen it.
Eugene: What barriers are you seeing when introducing Altris AI to new practices?
Grant: The main one is comfort — many doctors feel confident reading OCTs and don’t immediately see the need.The other is simply awareness. We’re a fast-growing startup, but many still don’t know about us. That’s why opportunities like this podcast are important.
In terms of logistics, there’s no barrier. Altris AI is web-based, nothing to install, and takes just 20 minutes to learn. We’re designed to be plug-and-play.
Eugene: If a practice wants to engage patients more using AI in eye care, how should they approach it?
Grant: One great idea is to run a recall campaign for patients who haven’t had an OCT in the last 6 or 12 months. Something like, “We now use AI to enhance your OCT scan — come see how it works.”AI is a differentiator. It shows your clinic is modern, patient-focused, and using the best available tools.
Eugene: What do you think the optometry practice of 2028 will look like?
Grant: I think you’ll see AI systems talking to each other. Imagine our platform detecting something on a scan and automatically triggering a patient reminder or a suggested follow-up.There will be less manual work and more focus on human care. The doctor will be able to walk in and focus completely on the patient — the AI will handle the background tasks like charting or longitudinal comparisons.
Ultimately, better care, less burnout.
Eugene: What’s one myth you’d like to bust about AI in optometry?
Grant: That AI will replace people. It won’t. What it does is make you more effective. You’ll have sharper insights, clearer visuals, and faster decision-making — all without replacing your clinical experience.Eugene: And finally, how can practices get started with Altris AI?
Grant: Just go to altris.ai or connect with us on LinkedIn. We offer live demos and can use your real OCT scans to show exactly how it works.There’s no software to install, no major investment, and we operate on a subscription basis — so there’s no long-term risk. If you’re curious, reach out. We’d love to show you what’s possible.
Watch the complete Power Hour podcast episode below for more insights on AI, automation, and innovation in eye care:
-
Dry AMD Treatment: Modern Ways to Slow Progression
Maria Znamenska
Dry AMD Treatment: Modern Ways to Slow Progression
Table of Contents
- What are the dry macular degeneration treatment breakthroughs?
- How to monitor dry AMD progression with OCT?
- What are the challenges of dry age-related macular degeneration monitoring?
- How do I organize efficient dry AMD monitoring in my clinic?
- Why are optometrists on the front line of early AMD detection?
- How can OCT insights help support patients emotionally?
- Conclusion
For many years, dry or non-exudative AMD was seen as untreatable. Most research focused on wet AMD and anti-VEGF therapy.
Today, this paradigm is shifting. Around 30% of patients with age-related macular degeneration are affected by the dry form, which makes finding effective therapies critical. Recently, the first FDA-approved drugs for dry macular degeneration injections have appeared, offering hope to patients with geographic atrophy (GA). Alongside, new physiotherapeutic methods, such as multi-wavelength photobiomodulation, are showing promising results.
Geographic atrophy (GA) is an advanced, irreversible form of dry AMD. It occurs when parts of the retina undergo cell death, leading to progressive vision loss. But even the best dry AMD treatment is incomplete without objective measurement. That’s where modern tools for macular degeneration monitoring come in, and optical coherence tomography (OCT) is now at the core of this process.
AI Decision Support for Dry AMD monitoring
Try Altris AI for free
What are the dry macular degeneration treatment breakthroughs?
The latest dry macular degeneration treatment breakthroughs include:
- Multiwavelength photobiomodulation
- FDA-approved injectable drugs
- AREDS 2-based supplements
In the past, recommendations focused only on reducing risks — quitting smoking, managing blood pressure, and eating a healthy diet.
Now, new approaches to dry AMD treatment combine prevention with active therapies to slow AMD progression and especially the advance of GA.1. Dry AMD treatment using multiwavelength photobiomodulation
Multiwavelength photobiomodulation for AMD is a promising new treatment. It uses specific red and near-infrared light wavelengths (~590–850 nm) and helps reduce oxidative stress, inflammation, and pigment epithelial cell death.
One of the best-known systems is Valeda Light Therapy, which delivers controlled multiwavelength light directly to the retina.
The LIGHTSITE III clinical trial showed that photobiomodulation can slow the decline in visual acuity and reduce the rate of GA expansion.
Limitations:
- Only 3–5 years of long-term data available
- Requires costly equipment and training
- Effectiveness in late-stage GA remains unclear
2. Dry AMD treatment using FDA-approved injectable drugs
AMD injection drugs approved by the FDA include Izervay and Syfovre.
- Izervay (avacincaptad pegol): A C5 complement protein inhibitor that targets the complement cascade involved in chronic retinal inflammation and damage. Izervay, approved for geographic atrophy secondary to dry AMD, has demonstrated a reduced rate of GA progression in clinical trials.
- Syfovre (pegcetacoplan): A C3 complement inhibitor that blocks the central component of the complement system to reduce inflammation. Syfovre is the first FDA-approved treatment for GA that targets complement component C3, showing a clinically meaningful slowing of GA progression.
Both dry macular degeneration injections have shown the ability to slow GA progression compared to placebo. Although they do not restore vision, slowing vision loss is a meaningful clinical outcome.
Key considerations for injections:
- Administered intravitreally, usually monthly or every other month
- Require doctor training and patient education on risks (e.g., endophthalmitis, increased intraocular pressure)
- Cost and access may limit use
3. Dry AMD treatment using AREDS 2-based supplements
AREDS 2 supplements are antioxidant supplements containing lutein, zeaxanthin, vitamins C and E, zinc, and copper. They can reduce the risk of progression to late-stage AMD by around 25% over five years, according to the AREDS 2 study.
Pros:
- Widely available
- Safe, with low side effect risk
- Supported by strong clinical evidence
Cons:
- Do not directly treat GA
- Cannot replace active therapies such as dry macular degeneration injections or photobiomodulation
How to monitor dry AMD progression with OCT
Effective macular degeneration monitoring relies on OCT. It is the gold standard for tracking retinal changes and predicting GA development.
Without OCT, clinicians are essentially “flying blind” when assessing AMD progression.Key monitoring parameters of AMD progression
The key monitoring parameters of AMD progression include GA area, drusen, and distance to fovea.
1. GA area
This is the main metric when using intravitreal eye injections. Modern OCT systems provide GA measurements in mm², allowing doctors to objectively track changes over time.
Even if patients don’t notice symptoms, a growing GA area signals disease progression. In FDA trials for Syfovre and Izervay, the GA area was the primary endpoint.
2. Drusen
Drusen vary in number, size, and shape. A reduction or disappearance of drusen on OCT may seem like an improvement, but could actually indicate a transition to the atrophic stage. Regular monitoring helps detect this early.
3. Distance to fovea
The closer GA is to the fovea, the greater the risk of sudden vision loss.
Early detection enables:
- Referral to an ophthalmologist
- Timely conversations about potential vision loss
OCT outputs for AMD progression monitoring and communication
Useful OCT outputs for AMD progression monitoring and communication are heat maps and progress charts.
1. Heat maps
Modern OCT systems use color-coded heat maps to show pigment epithelium thickness and drusen distribution. This visual format helps in several ways:
- Makes interpretation easier for clinicians
- Helps patients better understand their condition
- Encourages patients to stay engaged with treatment
In clinical practice, it serves as a highly effective communication tool.
AI Decision Support for Dry AMD monitoring
Try Altris AI for free
2. Progress charts
Most OCT systems can compare results across visits
- For doctors: Helps guide treatment decisions
- For patients: Provides visual proof of stabilization or worsening
The role of objective evidence in patient treatment
Patients may question the value of long-term treatments or costly procedures.
OCT is the gold standard for patient motivation. When patients see actual changes, they’re more likely to agree to treatment.
What are the challenges of macular degeneration monitoring?
Monitoring dry AMD presents technical, organizational, and psychological challenges. Doctors of all levels of experience should be aware of them.
1. Invisible microchanges
Early atrophy or drusen changes may be subtle. Patients may not notice them due to eccentric fixation or slow adaptation.
Without OCT, doctors may miss early GA, delaying treatment.
It is necessary to perform OCT even when there are only minor changes in visual acuity or if the patient reports image distortion (metamorphopsia).
2. Subjective assessment
Ophthalmoscopy reveals only obvious changes. Subtle drusen or early atrophy might be missed.
Relying on patients’ complaints is risky — many don’t notice issues until it’s too late.
That’s why even small optical practices should establish clear referral pathways for OCT exams.
3. Unnecessary referrals
Optometrists or primary care doctors often refer patients to ophthalmologists “just in case,” because they don’t have access to OCT or lack experience interpreting it.
This puts unnecessary strain on specialists. In many cases, nothing new is done after the exam because there are no previous images for comparison.
4. Limitations of OCT devices
Not all OCT devices measure GA or track drusen equally well. Older models may lack automated measurements of atrophy area.
In some cases, referral to a center with advanced OCT is necessary.
How do I organize efficient dry AMD monitoring in my clinic?
Practical tips:
1. Create a baseline chart with OCT images during the first visit.
2. Monitor regularly:
- Every 6–12 months in the early stages
- Every 3–6 months with GA
- Before each intravitreal injection
3. Standardise scanning protocols to minimise variability.
4. Use OCT software tools for image comparison, GA calculation, heat maps.
5. Communicate clearly with patients about drusen, atrophy, and treatment goals.
Why are optometrists on the front line of early AMD detection?
Optometrists play a key role in spotting the early signs of AMD, as they are often the first point of contact in eye care.
They perform initial screenings, provide guidance on lifestyle and supplements, and ensure regular OCT monitoring.
If drusen, pigment epithelial changes, or signs of GA are present, they refer patients to ophthalmologists for confirmation and treatment planning.
How can OCT insights help support patients emotionally?
Patients with dry AMD often ask: “Why bother if it can’t be cured?”
Here, OCT plays an emotional as well as clinical role. Showing OCT scans can:- Prove the value of slowing AMD progression
- Emphasise patients’ role in preserving sight
- Reassure them that long-term care makes a difference
Dry macular degeneration treatment breakthroughs: key takeaways for slowing AMD progression
Modern dry macular degeneration treatment breakthroughs, including FDA-approved injections, photobiomodulation, and AREDS 2 supplements, have changed the outlook for patients.
Yet treatment alone is not enough. Without consistent macular degeneration monitoring using OCT, the benefits of these therapies may be lost.The future of dry AMD treatment lies in a partnership between optometrists, ophthalmologists, and patients. Together, with breakthrough therapies and precise monitoring, we can slow AMD progression and give patients the best chance of preserving vision.