| Types of refractive errors | Distribution | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Overall (N=1374) (All percentages under this column calculated with N = 1374) |
Gender Based Distribution | Age based Distribution | |||||||||||||||||||
|
Males (N =670) (All percentages under this column calculated with N = 670) |
Females (N = 704) (All percentages under this column calculated with N = 704) |
Age ≤ 40 (N =1284) (All percentages under this column calculated with N = 1284) |
Age >40 (N = 90) (All percentages under this column calculated with N = 90) |
||||||||||||||||||
| N | % | N | % | N | % | N | % | N | % | N | % | N | % | N | % | N | % | N | % | ||
|
Myopia (MRSE ≤ -0.50 D) |
Low myopia (≤ −0.50 D and > −3.00 D) |
1262 | 91.8% | 702 | 51.1% | 609 | 90.9% | 390 | 58.2% | 653 | 92.8% | 312 | 44.3% | 1195 | 93.1% | 620 | 48.3% | 67 | 74.4% | 41 | 45.6% |
| Moderate myopia (≤ −3.00 D and > −6.00 D) |
400 | 29.1% | 158 | 23.6% | 242 | 34.4% | 414 | 32.2% | 16 | 17.8% | |||||||||||
| High myopia (≤ −6.00 D) |
160 | 11.6% | 61 | 9.1% | 99 | 14.1% | 161 | 12.5% | 10 | 11.1% | |||||||||||
|
Hyperopia (MRSE ≥ +0.50 D) |
Low to moderate hyperopia (≥ +0.50 D and < +3.00 D) |
65 | 4.7% | 45 | 3.3% | 33 | 4.9% | 25 | 3.7% | 32 | 4.5% | 20 | 2.8% | 46 | 3.6% | 29 | 2.3% | 19 | 21.1% | 16 | 17.8% |
| High hyperopia (≥ +3.0 D) |
20 | 1.5% | 8 | 1.2% | 12 | 1.7% | 17 | 1.3% | 3 | 3.3% | |||||||||||
| Emmetropia with astigmatism | (MRSE; > −0.5 D to < +0.5 D), but cylinder ≥ 0.50 DC) |
47 | 3.4% | 28 | 4.18% | 19 | 2.7% | 43 | 3.35% | 4 | 4.4% | ||||||||||
| MRSE- Manifest refraction spherical equivalent, D- Diopter, DC- Diopter cylinder | |||||||||||||||||||||