Guidelines for Assessment of PMI: Impairment of Vision

Impairment of Vision

Percentage

Enucleation (removal of eye) *

18%

Total loss of sight (one eye)

16%

Total loss of sight (both eyes)

100%

Hemianopia (field defect)

right

25%

 

left

20%

Scotomata (blind spot) – depending on location and extent

up to 16%

Diplopoa (double vision)

all fields

10%

 

upward gaze

1.5%

 

medial or lateral gaze

2.5% each

 

downward gaze

3.5%

Aphakia (removal of lens)

See table below

 

 

20/20, 20/30

6%

 

20/40

6+1=7%

 

20/50

6+2=8%

 

20/60

6+3=9%

 

20/80

6+4=10%

 

20/100

6+5=11%

 

20/200

6+6=12%

Photophobia (light sensitivity)

up to 2%

Tearing

up to 2%

Traumatic Mydriasis (dilatation of pupil)

up to 3%

Aniridia (partial or complete loss of iris)

up to 10%

 

* The extra 2% given for an enucleation is for the actual loss of the organ and the requirement of caring for the artificial eye and socket.

 

Partial Visual Loss in One Eye
(Corrected vision based on Snellen chart)

 

 

Table #1

Percentage

20/30 (6/9)

0%

20/40 (6/12)

1%

20/50 (6/15)

2%

20/60 (6/18)

4%

20/80 (6/24)

6%

20/100 (6/30)

8%

20/200 (6/60)

12%

20/400 (6/120) (including finger or hand movements)

14%

 

Partial Loss of Vision in Both Eyes
(Corrected vision based on Snellen Chart)

 

20/30
6/9

20/40
6/12

20/50
6/15

20/60
6/18

20/80
6/24

20/100
6/30

20/200
6/60

20/400
6/120

Blind

20/30
6/9

0

1

2

4

6

8

12

14

16

20/40
6/12

1

6.3

7.3

9.3

11.3

13.3

17.3

19.3

21.3

20/50
6/15

2

7.3

12.5

14.5

16.5

18.5

22.5

24.5

26.5

20/60
6/18

4

9.3

14.5

25

27

29

33

35

37

20/80
6/24

6

11.3

16.5

27

37.5

39.5

43.5

45.5

47.5

20/100
6/30

8

11.3

18.5

29

39.5

50

54

56

58

20/200
6/60

12

17.3

22.5

33

43.5

54

75

77

79

20/400
6/120

14

19.3

24.5

35

45.5

56

77

87.5

89.5

Blind

16

21.3

26.5

37

47.5

58

79

89.5

100