What is the VA? Snellen recording examples

Got first 5 letters correct in the

lines with a green tick

Got no letters correct in line with

a red cross

Recording: 6/24

Correctly identified first 4 lines

Only got 3 letters correct in smallest

line seen and none below

Recording: 6/24-2

Correctly identified first 4 lines

Only got 2 letters correct in smallest

line and none below

Recording: 6/30+2

Correctly identified first 4 lines

Only got 1 letter correct in smallest

line and none below

Recording: 6/30+1

Correctly identified first 3 lines

Only got 1 letter incorrect in

smallest line and none below

Recording: 6/30-1

Hint: Count total of incorrect

letters that are identified

Recording: 6/36+1

=>

4 incorrect letters – count backwards

from the threshold VA line.

4 incorrect from 6/30 = 6/36+1

6/15+2

6/12-2

6/12-1

6/9.5+1

6/7.5+1

6/6+1

6/7.5-1

6/6+1

6/6

6/9.5-1

6/7.5-2

6/7.5+2

6/6+2