Reporting Visual Acuities




The AJO encourages authors to report the visual acuity in the manuscript using the same nomenclature that was used in gathering the data provided they were recorded in one of the methods listed here. This table of equivalent visual acuities is provided to the readers as an aid to interpret visual acuity findings in familiar units.




Table of Equivalent Visual Acuity Measurements
































































































Snellen Visual Acuities Decimal Fraction LogMAR
4 Meters 6 Meters 20 Feet
4/40 6/60 20/200 0.10 +1.0
4/32 6/48 20/160 0.125 +0.9
4/25 6/38 20/125 0.16 +0.8
4/20 6/30 20/100 0.20 +0.7
4/16 6/24 20/80 0.25 +0.6
4/12.6 6/20 20/63 0.32 +0.5
4/10 6/15 20/50 0.40 +0.4
4/8 6/12 20/40 0.50 +0.3
4/6.3 6/10 20/32 0.63 +0.2
4/5 6/7.5 20/25 0.80 +0.1
4/4 6/6 20/20 1.00 0.0
4/3.2 6/5 20/16 1.25 −0.1
4/2.5 6/3.75 20/12.5 1.60 −0.2
4/2 6/3 20/10 2.00 −0.3

Only gold members can continue reading. Log In or Register to continue

Stay updated, free articles. Join our Telegram channel

Jan 12, 2017 | Posted by in OPHTHALMOLOGY | Comments Off on Reporting Visual Acuities

Full access? Get Clinical Tree

Get Clinical Tree app for offline access