OCTina-OCT Scan Analysis Chatbot

OCT Image

Load OCT ScanClick or drag image here

Scale Calibration

μm per pixel (scale)

μm/px

Common values: Topcon DRI ~3.87, Heidelberg Spectralis ~3.87–7.8 (varies by scan protocol)

Annotation Mode

Actions

Overlay Legend

Hole Apex

Min Diameter

Base Diameter (RPE)

Left Rim

Right Rim

Outer Base

Load an OCT scan to begin

Upload a B-scan cross-section of a full thickness macular hole. Then select annotation modes to place measurement points.

Ready — load an OCT image to begin

Measurements

Max Hole Height MHH—

Min Hole Diameter MHD—

Base Diameter BD—

Outer Base Diam. OBD—

Left Rim Angle θL—

Right Rim Angle θR—

Macular Hole Indices

MHI · Macular Hole Index—

MHH ÷ Base Diameter. ≥0.9 excellent, 0.5–0.9 good, <0.5 guarded.

Awaiting data

DHI · Diameter Hole Index—

MHD ÷ MHH. Higher = flatter hole = better prognosis.

Awaiting data

THI · Tractional Hole Index—

MHH ÷ MHD. Reflects vitreous traction. <0.9 favourable.

Awaiting data

HFF · Hole Form Factor—

Shape index: 1−(MHD/BD+MHD/OBD)/2. Higher = better closure.

Awaiting data

CI · Close Index—

MHI × DHI. Combined predictor of surgical closure.

Awaiting data

Surgical Prognosis

Place annotation points and click
Calculate Indices
to see prognosis