Table 16: CXL Treatment of Keratectasia After Laser In-Situ Keratomileusis*.
| Author, Year Patient (eyes) Mean Age | Observation Point | Topography K-Max (Mean Diopter ± SD) | Refractive Sphere (Mean Diopter ± SD) | Refractive Cylinder (Mean Diopter ± SD) | Visual Acuity UCVA (LogMar) | Visual Acuity BCVA (LogMar) |
|---|---|---|---|---|---|---|
| Hafezi F, 2007 (56) | ||||||
| 10 P (10 e) | Baseline | 57.4 D | NR | NR | NR | NR |
| 36.2 years (R; 27 to 43) |
12-month Postop | 56.3 D 5/10 ↓ ≥ 2 D |
7/10 ↓ ≥ 2 D | 7/10 ↓ ≥ 2 D | NR | 8/10 > 1 line |
| P-Value | NR | NR | NR | |||
| Salgado J, 2011 (57) | ||||||
| 15 P (22 e) | Baseline | 44.12 ± 3.97 D | −1.15 D | −2.59 D | 0.53 ± 0.38 | 0.19 ± 0.21 |
| 38.4 years (R; 27 to 51) |
12-month Postop | 42.04 ± 2.67 D | −1.06 D | −2.10 D | 0.40 ± 0.27 | 0.15 ± 0.14 |
| P-value | NS | NS | NS | NS | NS | |
| Vinciguerra P, 2010 (58) | Baseline | 45.93 ± 6.03 D (R 37.42 to 57.01) |
−2.96 ± 2.63 D (R −9.00 to 0.25) |
−2.40 ± 2.06 D (R −6.00 to 0.0) |
1.08 ± 0.43 (R 0.40 to 1.70) |
0.16 ± 0.14 (R 0.00 to 0.40) |
| 9 P (13 e) 42 years (R; 30 to 59) | 12-Month Postop | 42.49 ± 4.88 D (R, 35.49 to 49.12) |
−2.25 ± 1.39 D (R, −5.00 to -0.50) |
−2.00 ± 2.00 D (R, −5.00 to 0.0) |
0.94 ± 0.46 (R 0.01 to 1.30) |
0.06 ± 0.08 (R 0.00 to 0.22) |
| P-Value | NS | NS | NS | NS | < 0 .05 | |
*
e indicates eyes; NS, not significant; NR, not reported; Postop, postoperative; R, range; SD, standard deviation