Table 1.

Summary of eye examination findings by individual patients.

Case	Age, years	Photo-phobia	Color vision, S/L/M	Visual acuity	Stereopsis/depth perc.	Contrast sensitivity	Pupil diam, mm
1	38	+ + + +	100/60/70**	20/20	Stereoscopic	1.5	3.5
2	39	+ + +	100/70/70**	20/20	Stereoscopic	1.5	4.0
3	40	++	100/70/70**	20/20	Stereoscopic	2.0	4.0
4	42	++	90/90/80*	18/20	Stereoscopic	2.0	3.9
5	42	+	90/90/90	20/20	Stereoscopic	2.0	4.4
6	43	−	90/90/90	12/20	Stereoscopic	1.5	5.1
7	44	−	90/100/90	20/20	Stereoscopic	2.0	4.5
8	45	−	80/90/90*	10/20	Stereoscopic	2.0	4.2
9	46	+	100/80/90*	18/20	Stereoscopic	2.0	4.3
10	48	−	90/100/90	20/20	Stereoscopic	2.0	4.6
11	49	+	80/90/90*	18/20	Depth perc. only	1.0	4.1
12	51	−	80/80/80*	18/20	Depth perc. only	1.5	4.2
13	53	+	80/80/80*	20/20	Stereoscopic	2.0	4.0
14	53	−	80/90/100	10/20	Depth perc. only	1.5	3.5
15	54	−	70/90/90**	12/20	Stereoscopic	2.0	3.5
16	55	+	90/80/90*	20/20	Stereoscopic	2.0	4.0
17	57	−	90/90/90	18/20	Stereoscopic	2.0	4.1

Photophobia: ++++, very severe; +++, severe; ++, moderate; and +, mild. S, S cones; L, L cones; M, M cones; diam, diameter; and perc., perception.

^*Potential impairment;

^**Definite impairment.