Table 3.

Results of the questionnaires

Grade	1	2	3	4	5	none
Indoor studying	2 (1.6%)	52 (42.6%)	62 (50.8%)	5 (4.1%)	0 (0%)	1 (0.8%)
Television viewing	14 (11.5%)	42 (34.4%)	44 (36.1%)	17 (13.9%)	2 (1.6%)	3 (2.5%)
Screen time	80 (65.6%)	29 (23.8%)	9 (7.4%)	3 (2.5%)	0 (0%)	1 (0.8%)
Outdoor activities	71 (58.2%)	36 (29.5%)	12 (9.8%)	1 (0.8%)	0 (0%)	2 (1.6%)
Bedtime	11 (9.0%)	81 (66.4%)	28 (23.0%)	0 (0%)	0 (0%)	2 (1.6%)
Dietary habit	1 (0.8%)	37 (30.3%)	64 (52.5%)	17 (13.9%)	1 (0.8%)	2 (1.6%)
Parental myopia	19 (15.6%)	34 (27.9%)	52 (42.6%)			17 (13.9%)