Table 3 Visual improvement after correcting refractive errors
Gained lines | Without glasses n (%) | With glasses n (%) | Total n (%) | |
|---|---|---|---|---|
Presenting vision worse than 6/18 in the better eye (n = 71) | 0 lines | 14 (28.57%) | 8 (36.36%) | 22 (30.99%) |
≥1 line | 35 (71.43%) | 14 (63.64%) | 49 (69.01%) | |
≥2 lines | 30 (61.22%) | 13 (59.09%) | 43 (60.56%) | |
≥3 lines | 26 (53.06%) | 9 (40.91%) | 35 (49.30%) | |
≥4 lines | 23 (46.94%) | 3 (13.64%) | 26 (36.62%) | |
Presenting vision worse than 20/40 in the better eye (n = 162) | 0 lines | 28 (22.22%) | 11 (30.56%) | 39 (24.07%) |
≥1 line | 98 (77.78%) | 25 (69.44%) | 123 (75.93%) | |
≥2 lines | 79 (62.70%) | 20 (55.56%) | 99 (61.11%) | |
≥3 lines | 50 (39.68%) | 10 (27.78%) | 60 (37.04%) | |
≥4 lines | 33 (26.19%) | 3 (8.33%) | 36 (22.22%) | |
Presenting vision worse than 20/20 in the better eye (n = 518) | 0 lines | 178 (43.31%) | 48 (44.86%) | 226 (46.57%) |
≥1 line | 233 (56.69%) | 59 (55.14%) | 292 (56.37%) | |
≥2 lines | 119 (28.95%) | 34 (31.78%) | 153 (28.43%) | |
≥3 lines | 59 (14.36%) | 14 (13.08%) | 73 (14.22%) | |
≥4 lines | 33 (8.03%) | 3 (2.80%) | 36 (7.35%) |