One-Year Results of Simultaneous Topography-Guided Photorefractive Keratectomy and Corneal Collagen Cross-Linking in Keratoconus Utilizing a Modern Ablation Software
Table 1
Summary of results.
Parameter
Preoperatively
1 month postoperatively
3 months postoperatively
6 months postoperatively
12 months postoperatively
LogMAR UDVA Mean ± SD
0.830 ±.37
0.47 ±0.32
0.35 ±0.25
0.31 ±0.26
0.26 ±0.25
P value
0.003
<0.001
<0.001
<0.001
LogMAR CDVA Mean ± SD
.27 ±0.31
0.27 ±0.29
0.18 ±0.21
0.12 ±0.19
0.08 ±0.18
P value
0.99
0.108
0.04
0.02
Kmax in D Mean ± SD
48.9 ±2.8
45.6 ±3.2
45.6 ±3.2
45.5 ±3.1
45.4 ±3.1
P value
<0.001
<0.001
<0.001
<0.001
Kmin in D Mean ± SD
45.9 ±2.8
44.4 ±2.9
44.3 ±3.0
44.3 ±3.1
44.1 ±3.2
P value
0.004
0.003
0.003
0.003
Median cylindrical error in D
2.13
1.25
1.0
1.00
1.13
P value
<0.001
<0.001
<0.001
<0.001
LogMAR = logarithm of the minimal angle of resolution, UDVA = uncorrected distance visual acuity, CDVA = corrected distance visual acuity, Kmax = maximum keratometry, Kmin = minimum keratometry, and D = diopter.
