OCTON · Deep Scan

Purpose-built for
AMD · DR · Glaucoma · Cardiovascular.

Four diseases account for over three-quarters of preventable adult blindness and a large share of undetected cardiovascular mortality worldwide. OCTON's dual-brain AI runs a dedicated deep-scan pipeline for each — pixel-level structural analysis, evidence-graded staging, and a closed-loop referral to a sub-specialty centre if it matters.

Evidence-graded · Peer-reviewed citations
OCTON — a luminous light-blue human eye
AMD · Drusen
Glaucoma · Cup:Disc
Cardio · AV-ratio
DR · Microaneurysms
Chapter 01 · AMD

Age-related Macular Degeneration

OCTON's AMD pipeline detects the earliest structural changes at the macula — drusen morphology, retinal pigment epithelial changes, and subretinal fluid — and stages severity against the AREDS-2 classification. If it sees anything suspicious, you get a follow-up window, home-monitoring guidance (Amsler grid, high-dose AREDS supplementation triggers), and an instant referral packet to a macula specialist.

StageDrusenAction
NoneNone / small (<63 μm)Annual re-scan
EarlyMedium (63–125 μm)6-month re-scan
IntermediateLarge (>125 μm) or pigment changesAREDS-2 supplement · optometry review
Late dryGeographic atrophyRefer to macula clinic
Late wetNeovascularisation / fluidSame-day ophthalmology referral

Staging follows Ferris et al., 2013 (Ophthalmology 120) and the AREDS-2 report. Deep-scan classification is corroborated on-device against reference drusen morphology from the IEEE Kaggle iChallenge-AMD dataset.

Imaging protocol
Best-view checklist
  • Macula centred (fovea in mid-frame)
  • Dim room · dilated pupil ideal (not required)
  • Steady phone, 4–6 in / 10–15 cm distance
  • Optional: pair a handheld fundus camera (Devices)
Evidence base
3 peer-reviewed studies
  • Peng et al., Nature Communications 2019 — deep learning matches AREDS graders.
  • Burlina et al., JAMA Ophthalmol 2017 — automated fundus grading.
  • Grassmann et al., Ophthalmology 2018 — 13-class AMD DNN.
Full disease brief
Imaging protocol
Best-view checklist
  • Optic disc + macula visible (a 45° field is ideal)
  • Two fields per eye (posterior pole + nasal)
  • Higher-res via clinic camera boosts sensitivity for microaneurysms
  • DICOM export from tabletop devices supported (Devices)
Evidence base
Landmark studies
  • Gulshan et al., JAMA 2016 — Google Health DR algorithm.
  • Ting et al., JAMA 2017 — SELENA+, 71,896 images.
  • Abràmoff et al., npj Digital Medicine 2018 — IDx-DR autonomous AI (FDA-cleared).
Full disease brief
Chapter 02 · DR

Diabetic Retinopathy

For anyone with type 1 or type 2 diabetes, OCTON's DR pipeline classifies severity against the ETDRS scale — from no retinopathy through mild, moderate, severe non-proliferative, and proliferative disease. We flag microaneurysms, dot-blot haemorrhages, cotton-wool spots, hard exudates, IRMA, and venous beading; then trigger the correct urgency of follow-up.

ETDRS stageAction
R0 · No DRAnnual retinal photograph
R1 · Mild NPDR12-month re-scan
R2 · Moderate NPDR6-month re-scan
R3 · Severe NPDRRefer to ophthalmology · 3–6 mo
R4 · ProliferativeUrgent same-week referral
M · MaculopathyAnti-VEGF pathway trigger

Grading follows the Early Treatment Diabetic Retinopathy Study (ETDRS) and the International Clinical Diabetic Retinopathy severity scale.

Chapter 03 · Glaucoma

Catching the silent thief of sight.

Global under-diagnosis
Roughly 50% of glaucoma cases worldwide go undetected.

Because glaucoma steals peripheral vision silently, patients rarely notice damage until 40% of optic nerve fibres are already lost. OCTON's deep-scan reads the optic disc, neuroretinal rim and RNFL quantitatively — spotting the pattern before symptoms appear.Ref: Tham Y-C et al., Ophthalmology 2014; Bourne R et al., Lancet Global Health 2016.

The pipeline follows the ISNT rule for neuroretinal rim thickness, quantifies vertical cup-to-disc (C:D) ratio, checks OD/OS asymmetry, and looks for disc haemorrhages and RNFL wedge defects. Whenever OCTON sees a red flag, we push an urgent recommendation for tonometry + visual-field testing.

StageC:D ratioAction
Low risk≤ 0.4 · symmetric3-yr re-scan
Suspect0.5–0.6 · symmetricBaseline IOP + OCT
Early0.6–0.7 · asymmetric > 0.2Refer glaucoma clinic (routine)
Moderate0.7–0.8Refer glaucoma clinic (urgent)
Advanced≥ 0.85Same-week specialist review

Staging follows the European Glaucoma Society Terminology & Guidelines (EGS-5, 2020) and the ISGEO consensus. Automated OCTON grading validated against reference datasets from the REFUGE-2 and OIA-ODIR-5K challenges.

Imaging protocol
Best-view checklist
  • Optic disc centred, not the macula
  • Bilateral capture — OCTON compares OD vs OS asymmetry
  • Undilated is fine if the disc edges are sharp
  • OCT-quality boost from any Bluetooth camera (Devices)
Evidence base
Landmark studies
  • Ting DSW et al., npj Digital Medicine 2019 — deep learning for glaucoma detection, AUC 0.94.
  • Li Z et al., Ophthalmology 2018 — 48,000-image glaucomatous optic-disc classifier.
  • Liu H et al., JAMA Ophthalmol 2019 — external validation across 26 clinics.
Full disease brief
Imaging protocol
Best-view checklist
  • Include optic disc + macula so the vascular arcades are visible
  • Sharp focus on arterioles + venules (thickness matters)
  • Two eyes ideally — cross-check AV-ratio symmetry
  • Provide age + BP + smoking status in Profile for calibrated risk
Evidence base
Landmark studies
  • Poplin R et al., Nature Biomedical Engineering 2018 — age, sex, smoking, BP and cardiac events predicted from fundus alone.
  • Rim TH et al., Circulation 2020 — retinal-based coronary-artery-calcium prediction.
  • Wong TY et al., Ophthalmology 2001 — Atherosclerosis Risk in Communities (ARIC) retinal vessel study.
  • Cheung CY et al., Lancet Digital Health 2022 — dementia + stroke risk from retinal AI.
Full disease brief
Chapter 04 · Cardiovascular Risk

The retina is a window on your arteries.

Retinal micro-vessels mirror the systemic circulation exactly. OCTON reads arteriovenous ratio, arteriolar narrowing, AV nicking, cotton-wool spots and hard exudates — then maps them to hypertensive-retinopathy staging and a Poplin-style 10-year major adverse cardiac event (MACE) risk score. When the retina looks bad long before the heart does, we get you to your GP with hard evidence.

GradeRetinal signsAction
0 · NoneNormal vesselsAnnual re-scan
I · Mild hypertensiveArteriolar narrowing (A:V ratio ↓)Lifestyle + BP check
II · ModerateAV nicking · focal narrowingGP review · consider statin
III · Severe / acceleratedFlame haemorrhages · cotton-wool spotsSame-week internal-medicine referral
IV · MalignantDisc oedema (Grade IV Keith–Wagener)URGENT — same-day ED · BP control

Grading follows the classic Keith–Wagener–Barker classification of hypertensive retinopathy, plus a MACE risk score derived from retinal biomarkers per Poplin et al. 2018. Estimates are age- and sex-adjusted using the Framingham / PREDICT baseline.

Wireless imaging

Deeper scans with a paired camera.

Pair a Bluetooth-capable handheld fundus camera (Optomed Aurora IQ, Remidio FOP), a passive optical clip-on (D-EYE, PEEK Retina, iExaminer 5.1) or a tabletop DICOM camera (Zeiss VISUCAM). OCTON accepts JPEG, PNG, HEIC and full DICOM — the deep-scan pipeline runs the same way on every source.

Pair a device

Ready for a Deep Scan?

One capture. Two disease pipelines. Instant severity staging, evidence citations, and — if it matters — a same-day referral packet to a sub-specialty centre near you.

OCTON

A neuromorphic retinal screening engine. Fast pattern triage by the Hippocampus module, deep diagnostic reasoning by the Neocortex. For early detection of diabetic retinopathy, AMD, glaucoma & more.

For early screening — Not a substitute for a licensed ophthalmologist.

System
  • Hippocampus / OCTON Preliminary Analysis
  • Neocortex / OCTON In-Depth Analysis
© 2026 OCTON AIv1.0.0 / EARLY ACCESS
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