A novel excel sheet conversion tool from Snellen fraction to LogMAR including ‘counting fingers’, ‘hand movement’, ‘light perception’ and ‘no light perception’ and focused review of literature of low visual acuity reference values

Moussa, George; Bassilious, Kerolos; Mathews, Namita

doi:10.1111/aos.14659

Public

A novel excel sheet conversion tool from Snellen fraction to LogMAR including ‘counting fingers’, ‘hand movement’, ‘light perception’ and ‘no light perception’ and focused review of literature of low visual acuity reference values

Published in Acta Ophthalmologica • Dec 16, 2020

Authors:

George Moussa

Kerolos Bassilious

Namita Mathews

Abstract

Visual acuity (VA) is paramount to outcome measures in ophthalmic studies. The Early Treatment Diabetic Retinopathy Study (ETDRS) chart is internationally recognized as ‘gold standarnumerical imputation for low vision stad’ for VA measurement in clinical trials and population surveys [ICO 1984 + 200...

Subject

Artificial intelligence

Visual acuity

Computer science

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