Table 3.

Distribution of stereoacuity

Stereoacuity (Seconds of Arc)	No. of students	Percentage	Cumulative Percentage
40	2,043	85.98	85.98
50	99	4.17	90.15
60	72	3.03	93.18
80	67	2.82	96.00
100	42	1.77	97.77
140	13	0.55	98.32
200	29	1.22	99.54
400	9	0.38	99.92
800	1	0.04	99.96
3,000 (Fly test positive)	1	0.04	100
Total no. of students		2,376