Clinical Study

Clinical Outcomes after Complete Intracorneal Ring Implantation and Corneal Collagen Cross-Linking in an Intrastromal Pocket in One Session for Keratoconus

Table 1

Visual and refractive outcomes over time.

Mean ± SD
VariablePreoperativePostoperative Value
1 Months6 Months1 Year2 Years

UDVA (logMAR)0.89 ± 0.380.61 ± 0.340.42 ± 0.260.33 ± 0.230.29 ± 0.26=0.012
CDVA (logMAR)0.44 ± 0.200.36 ± 0.220.22 ± 0.120.19 ± 0.090.16 ± 0.10<0.001
Sphere (D)−4.01 ± 3.21−1.54 ± 2.57−0.94 ± 2.07−1.25 ± 0.94−1.8 ± 0.58<0.001
Cylinder (D)−2.98 ± 2.67−1.15 ± 1.78−1.53 ± 2.10−1.37 ± 1.43−0.95 ± 1.54=0.025
Mean K (D)51.05 ± 4.5147.27 ± 5.2746.8 ± 4.6447.11 ± 4.5747.34 ± 5.85<0.001
Corneal astigmatism (D)4.62 ± 3.233.12 ± 1.921.66 ± 0.92.96 ± 1.652.35 ± 1.14=0.048

CDVA = corrected distance visual acuity; K = keratometry; UDVA = uncorrected distance visual acuity.
value—change from preoperatively to 1 year postoperatively (paired Student test).