Table 5 Relationship between refractive error regression after PRK surgery and preoperative variables in 16 patients who had one regressed and one non-regressed eyes
From: Studying the factors related to refractive error regression after PRK surgery
Variables | People whose right eyes were regressed after surgery but their left eyes were not surgery | People Whose left eyes were regressed after surgery but their right eyes were not | ||||
|---|---|---|---|---|---|---|
Right eye N = 7 | Left eye N = 7 | Test | Right eye N = 9 | Left eye N = 9 | Test | |
Mead(minmax) | Mead(minmax) | P value§ | Mead(min-max) | Mead(min-max) | P value§ | |
Thickness (μm) | 526 (466–573) | 520 (474–588) | 0.94 | 505 (470–558) | 514 (461–562) | 0.72 |
Irregularity 5 (mm) | 2.20 (1.70–4.90) | 1.80 (1.20–2.10) | 0.03 | 1.20 (1.00–2.30) | 1.60 (1.10–2.40) | 0.08 |
Astigmatism (D) | 3.00 (1.50–4.75) | 2.25 (1.00–3.75) | 0.36 | 1.5 (1.25–2.75) | 2.25 (0.50–4.25) | 0.14 |
Sphere (D) | 0.50 (0–5.00) | 0.50 (0–4.25) | 0.79 | 2.25 (0.25–7.00) | 2.00 (0.50–8.25) | 0.82 |
SimK (D) | 2.50 (0.6–3.80) | 2.7 (0.9–3.00) | 0.94 | 1.30 (0.80–2.10) | 1.75 (0.70–2.90) | 0.21 |