Table 3.
Group-wise comparisons of ocular involvement, visual acuity and fundus changes in beta-thalassemia subjects
| No. of subjects | ||||
|---|---|---|---|---|
| Group A | Group B | Group C | Group D | |
| Ocular involvement | ||||
| Present (58%) | 1 | 4 | 8 | 13 |
| Absent (42%) | 5 | 2 | 5 | 7 |
| Visual acuity | ||||
| Normal (67%) | 5 | 3 | 8 | 14 |
| Decreased (33%) | 1 | 3 | 5 | 6 |
| Lens opacities | ||||
| Present (40%) | 1 | 3 | 8 | 6 |
| Absent (60%) | 5 | 3 | 5 | 14 |
| Fundus changes | ||||
| RPE* degeneration (31%) | 0 | 1 | 4 | 9 |
| RPE mottling (9%) | 1 | 0 | 1 | 2 |
| Venous tortuosity (11%) | 1 | 1 | 1 | 2 |
| Disc hyperemia (7%) | 1 | 0 | 1 | 1 |
| Increased cup-disc ratio (4%) | 0 | 0 | 1 | 1 |
| No changes | 5 | 5 | 9 | 9 |
*
-Retinalpigmentepithelium