Description of patients by laterality according to age, sex, cataract types and tertiary care facility
| Characteristics | Bilateral N (%) | Unilateral N (%) | Total n (%) | Cumulative Frequency | |
| Age group (months) | ≤3 | 9 (5.1) | 3 (5.9) | 12 (5.3) | 5.3 |
| 4–6 | 15 (8.5) | 5 (9.8) | 20 (8.7) | 14.0 | |
| 7–12 | 45 (25.4) | 10 (19.6) | 55 (24.1) | 38.1 | |
| 13–18 | 8 (4.5) | 2 (3.9) | 10 (4.4) | 42.5 | |
| 19–24 | 13 (7.3) | 4 (8.8) | 17 (7.5) | 50.0 | |
| 25 and above | 87 (49.2) | 27 (52.9) | 114 (50) | 100.0 | |
| Total | 177(100) | 51(100) | 228(100) | ||
| Sex | Male | 111 (62.7) | 30 (58.8) | 141 (61.8) | 61.8 |
| Female | 66 (37.3) | 21 (41.2) | 87 (38.2) | 100.0 | |
| Total | 177 (100) | 51 (100) | 228 (100) | ||
| Tertiary care facility | KCMC | 102 (57.6) | 21 (41.2) | 123 (53.9) | 53.9 |
| CCBRT | 49 (27.7) | 30 (58.8) | 79 (34.6) | 88.6 | |
| MNH | 26 (14.7) | 0 (0.0) | 26 (11.4) | 100.0 | |
| Total | 177 (100) | 51 (100) | 228 (100) | ||
| Cataract types | No of eyes | ||||
| Diffuse/total | 130 (36.7) | 30 (58.8) | 160 (39.5) | 39.5 | |
| Nuclear | 86 (24.3) | 5 (9.8) | 91 (22.5) | 62.0 | |
| Lamellar | 129 (36.4) | 10 (19.6) | 139 (34.3) | 96.3 | |
| PHPV | 0 (0.0) | 2 (3.9) | 2 (0.5) | 96.8 | |
| Anterior polar | 0 (0.0) | 2 (3.9) | 2 (0.5) | 97.3 | |
| Posterior polar | 5 (1.4) | 1 (1.9) | 6 (1.5) | 98.8 | |
| Cortical | 2 (0.6) | 1 (1.9) | 3 (0.7) | 99.5 | |
| Membranous | 2 (0.6) | 0 (0.0) | 2 (0.5) | 100.0 | |
| Total | 354 (100) | 51 (100) | 405 (100) | ||
CCBRT, Comprehensive Community Based Rehabilitation in Tanzania; KCMC, Kilimanjaro Christian Medical University College; MNH, Muhimbili National Hospital; PHPV, Persistent Hyperplastic Primary Vitreous.