Score

Visual Acuity

(ETDRS letter score/Snellen)

Visual Field Diameter

(˚)

Elipsoid Zone Width

(˚)

0

≥85 (20/20)

≥120

≥30

1

<85 (20/20) to ≥80 (20/25)

<120 to ≥80

<30 to ≥15

2

<80 (20/25) to ≥75 (20/32)

<80 to ≥40

<15 to ≥10

3

<75 (20/32) to ≥70 (20/40)

<40 to ≥20

<10 to ≥7

4

<70 (20/40) to ≥55 (20/100)

<20 to ≥15

<7 to ≥5

5

<55 (20/100)

<15

<5