Table 5.

The percentage number of students in each class with VA poorer than the mean VA demand at distance and near.

Class	Mean age (years)	Mean maximum distance VA demand (LogMAR)	Mean actual near VA demand (LogMAR)	VA poorer than mean maximum distance VA demand (%)	VA poorer than mean actual near VA demand (%)	Average number of students per class
Primary 1	7.02	0.32	0.38	1.22	0.61	34.92
Primary 2	7.74	0.21	0.33	1.24	0.62	38.62
Primary 3	8.84	0.19	0.32	2.75	0.55	36.31
Primary 4	9.83	0.41	0.32	1.34	2.01	32.00
Primary 5	10.77	0.21	0.27	3.90	2.60	30.67
Primary 6	11.63	0.11	0.26	2.19	2.19	34.67
JSS 1	11.13	0.18	0.12	5.05	5.50	59.67
JSS 2	12.16	0.14	0.12	4.85	3.52	66.75
JSS 3	12.95	0.19	0.11	6.28	6.28	58.25
SSS 1	14.10	0.14	0.04	4.90	9.31	49.58
SSS 2	15.05	0.19	0.05	7.79	10.82	42.69
SSS 3	16.03	0.14	0.06	7.07	7.61	30.09

JSS Junior Secondary School, SSS Senior Secondary School.