TABLE 3.
Distribution of each congenital ocular anomaly (COA) class in the four respective subclasses: (i) single, (ii) associated single, (iii) complex, (iv) associated complex (period: 1995–2019).
| Classes of COA | Results (%) |
|---|---|
| N = 5052 (number of cases) | |
| Anophthalmia/microphthalmia | |
| 166 single (13.8%) | 1206 (23.9%) |
| 659 associated single (54.6%) | |
| 147 complex (12.2%) | |
| 234 associated complex (19.4%) | |
| Congenital cataract and lens anomalies | |
| 878 single (55.7%) | 1578 (31.2%) |
| 403 associated single (25.5%) | |
| 149 complex (9.4%) | |
| 148 associated complex (9.4%) | |
| Congenital malformations of the anterior segment | |
| 302 single (29.0%) | 1040 (20.6%) |
| 361 associated single (34.7%) | |
| 159 complex (15.3%) | |
| 218 associated complex (21.0%) | |
| Congenital malformations of the posterior segment | |
| 123 single (19.4%) | 635 (12.6%) |
| 225 associated single (35.4%) | |
| 115 complex (18.1%) | |
| 172 associated complex (27.1%) | |
| Congenital glaucoma | |
| 184 single (47.5%) | 387 (7.7%) |
| 113 associated single (29.2%) | |
| 56 complex (14.5%) | |
| 34 associated complex (8.8%) | |
| Dysplasia of the septum and optic tract | |
| 36 single (29.5%) | 122 (2.4%) |
| 12 associated single (9.8%) | |
| 72 complex (59.1%) | |
| 2 associated complex (1.6%) | |
| Coloboma | |
| 131 single (19.9%) | 659 (13.0%) |
| 256 associated single (38.8%) | |
| 102 complex (15.5%) | |
| 170 associated complex (25.8%) | |