Table 1.
Patient demographics.
| Demographic | PRK (n = 100) | LASIK (n = 100) | P Value |
|---|---|---|---|
| Sex (% male) | 42 | 55 | .09 |
| Age (y) | .2 | ||
| Mean | 36.2 | 37.9 | |
| Range | 18 to 59 | 22 to 60 | |
| Preoperative MRSE (D) | .9 | ||
| Mean | −4.97 | −4.98 | |
| Range | −0.75 to −9.00 | −0.75 to −9.00 | |
| Preoperative BSCVA (20/x) | .03 | ||
| Mean | 19.3 | 18.5 | |
| Range | 15 to 25 | 15 to 25 | |
| Postoperative outcomes | |||
| 3-month UCVA (20/x) | .2 | ||
| Mean | 22.3 | 24.7 | |
| Range | 15 to 60 | 15 to 70 | |
| 3-month BSCVA (20/x) | .3 | ||
| Mean | 18.3 | 17.8 | |
| Range | 10 to 25 | 15 to 25 | |
| 3-month MRSE (D) | <.0001 | ||
| Mean | +0.11 | −0.19 | |
| Range | −1.00 to +1.00 | +0.75 to −0.875 |
BSCVA = best spectacle-corrected visual acuity; LASIK = laser in situ keratomileusis; MRSE = manifest refraction spherical equivalent; PRK = photorefractive keratectomy; UCVA = uncorrected visual acuity