Table 1.
Prevalence of different ocular diseases in three ecological regions
| Pattern of diseases | Total | Terai | Hill | Mountain | ||||
|---|---|---|---|---|---|---|---|---|
| N | % | N | % | N | % | N | % | |
| Conjunctivitis (Acute and Chronic) | 162 | 43.3 | 7 | 6.0 | 18 | 23.1 | 137 | 76.1 |
| Corneal opacity | 81 | 21.7 | 53 | 45.7 | 16 | 20.5 | 12 | 6.7 |
| Strabismus | 50 | 13.4 | 12 | 10.3 | 16 | 16.7 | 22 | 12.2 |
| Amblyopia | 35 | 9.4 | 13 | 11.2 | 13 | 16.7 | 9 | 5.0 |
| Congenital ptosis | 13 | 3.5 | 9 | 7.8 | 2 | 2.6 | 2 | 1.1 |
| Refractive error | 7 | 1.9 | 3 | 2.6 | 2 | 2.6 | 2 | 1.1 |
| Congenital cataract/aphakia | 6 | 1.6 | 3 | 2.6 | 2 | 2.6 | 1 | 0.6 |
| Choroidal coloboma | 4 | 1.1 | 4 | 3.5 | 0 | 0.0 | 0 | 0.0 |
| Congenital lid and adnexal diseases | 5 | 1.3 | 0 | 0.0 | 3 | 3.9 | 2 | 1.1 |
| Optic atrophy | 2 | 0.5 | 1 | 0.9 | 0 | 0.0 | 1 | 0.6 |
| Retinal diseases | 3 | 0.8 | 3 | 2.6 | 0 | 0.0 | 0 | 0.0 |
| Nystagmus | 4 | 1.1 | 1 | 0.9 | 1 | 1.3 | 2 | 1.1 |
| Globe abnormalities | 6 | 1.6 | 4 | 3.5 | 2 | 2.6 | 0 | 0.0 |
| Others | 4 | 1.1 | 1 | 0.9 | 2 | 2.6 | 1 | 0.6 |