Table 2.
The total myopic eyes classified according to the pre-operative refraction into three sub-groups
| Total myopic eyes (n = 2316) n (column %) |
P value | |||
|---|---|---|---|---|
| Low > − 3.0D | Moderate − 3.0 to > − 6.0D | High < − 6.0D | ||
| Number (%) | 1140 (49.2%) | 830 (35.84%) | 346 (14.94%) | – |
| Age (yrs) | 0.0111* | |||
| Mean ± SD | 26.4 ± 6.2 | 26.6 ± 6.6 | 27.6 ± 7.4 | |
| Range | (21 to 50) | (21 to 50) | (21 to 50) | |
| Sex: n, (%) | 0.022* | |||
| Male | 480 (42.1%) | 312 (37.6%) | 158 (45.7%) | |
| Female | 660 (57.9%) | 518 (62.4%) | 188 (54.3%) | |
| Eye: n (%) | 0.790 | |||
| Right | 574 (50.4%) | 408 (49.15%) | 168 (48.6%) | |
| Left | 566 (49.6%) | 422 (50.85%) | 178 (51.4%) | |
| SE(D): | < 0.001* | |||
| Mean ± SD | − 2.3 ± 0.7 | − 4.9 ± 1.2 | − 8.4 ± 1.8 | |
| Range | (− 0.5 to − 2.75) | (− 3.0 to − 5.75) | (− 6.0 to − 10.0) | |
| K min (D) | < 0.001* | |||
| Mean ± SD | 43.3 ± 1.3 | 43.7 ± 1.4 | 43.9 ± 1.6 | |
| Range | (38.5 to 47.9) | (38.7 to 47.8) | (40.0 to 48.1) | |
| K2 max(D) | < 0.001* | |||
| Mean ± SD | 44.4 ± 1.7 | 44.7 ± 1.4 | 45.2 ± 1.5 | |
| Range | (40.2 to 49.0) | (41.4 to 49.6) | (42.1 to 49.6) | |
SE spherical equivalent, n number, yrs years, SD standard deviation, D diopter, K min minimum keratometric power, K max maximum keratometric power
*Statistically significant