Whether Keratectasia Area Shown in Corneal Topography Is Appropriate for Evaluating the Effect of Corneal Cross-Linking for Keratoconus: A 12-Month Follow-Up Study

Table 1

Baseline and 3-, 6-, and 12-month outcomes after CXL in all eyes (n =34).

Parameter	Preop	3 mo postop	6 mo postop	12 mo postop
Kmax (D)	58.89±7.97	58.36±8.50	57.14±8.01	56.55±8.25
K1(D)	46.68±3.80	46.37±4.31	46.06±4.33	45.92±4.15
K2(D)	50.12±5.07	49.83±5.90	49.57±5.79	49.06±5.46
KEA(mm^2)	20.06±11.03	18.00±10.91	16.78±10.95	15.36 ± 10.75

K1, flattest keratometry reading; K2, steepest keratometry reading; Kmax, maximum keratometry; KEA, area of the region above 47 D shown in corneal topography.