Subject Identifier

Anonymized patient identifier

Visit Identifier

Anonymized visit identifier

Eye

Right (R) or Left (L)  

Quality

Image quality graded by a single expert. Grades include 'Excellent', 'Fair', 'Good', 'Unreadable', 'NULL'

Age

Age at visit

years

Gender

Male (M) /Female (F) / Other (O) / NULL

Camera

Retinal camera used to capture image (NULL if no image was taken for the eye)

NDRP

No diabetic retinopathy, 1 = present, 0 = absent, -1 = unknown (e.g. unreadable image, or no image taken)

Mild NPDR

Mild non-proliferative diabetic retinopathy, 1 = present, 0 = absent, -1 = unknown (e.g. unreadable image, or no image taken)

Moderate NPDR

Moderate non-proliferative diabetic retinopathy, 1 = present, 0 = absent, -1 = unknown (e.g. unreadable image, or no image taken)

Severe NPDR

Severe non-proliferative diabetic retinopathy, 1 = present, 0 = absent, -1 = unknown (e.g. unreadable image, or no image taken)

Proliferative DR

Proliferative diabetic retinopathy, 1 = present, 0 = absent, -1 = unknown (e.g. unreadable image, or no image taken)

Diabetic Macular Edema

Diabetic macular edema, 1 = present, 0 = absent, -1 = unknown (e.g. unreadable image, or no image taken)

Choroidal Nevus

Choroidal nevus, 1 = present, 0 = absent, -1 = unknown (e.g. unreadable image, or no image taken) 

Cotton Wool Spots

Cotton wool spots, 1 = present, 0 = absent, -1 = unknown (e.g. unreadable image, or no image taken)

Drusen Pigmentary Changes

Drusen or pigmentary changes, 1 = present, 0 = absent, -1 = unknown (e.g. unreadable image, or no image taken)

ERM

Epiretinal membrane, 1 = present, 0 = absent, -1 = unknown (e.g. unreadable image, or no image taken)

Glaucoma Suspect

Glaucoma suspect, 1 = present, 0 = absent, -1 = unknown (e.g. unreadable image, or no image taken)

Increased CD Ratio

Increased cup-to-disc ratio, 1 = present, 0 = absent, -1 = unknown (e.g. unreadable image, or no image taken)

Macular Degeneration

Macular degeneration, 1 = present, 0 = absent, -1 = unknown (e.g. unreadable image, or no image taken)

Vascular Tortuosity

Vascular tortuosity, 1 = present, 0 = absent, -1 = unknown (e.g. unreadable image, or no image taken)

Other

Other findings, given as free text

Follow Up Recommendation

Needs ReScreen / No Referral Needed / Referral to Eye Care Specialist / NULL

Urgency

NORMAL / URGENT / NOT_SET Normal / Urgent / Not set

PCP Organization

Anonymized PCP organization identifier

ZIP code

ZIP code for PCP organization (first 3 digits only)

Report Name

Report form used to record findings

Report Version

Version of report form used to record findings

Image Quality

Softmax and overall prediction of quality (good, usable, bad)

Crop Information

Crop information and scale resolution

Disc Features

Disc height, disc width, cup height, cup width, vertical CD ratio, horizontal CD ratio

µm, ratio

Vessel Features

Fractal dimension, vessel density, average width, tortuosity (distance, square curved, density). Given for all vessels, arteries, and veins, and whole image, Zone B, Zone C

unitless, ratio, pixels, µm

CIELAB vectors

L, a, b vectors in CIELAB space

unitless

Pigmentation

Retinal pigmentation score

unitless