Postkeratoplasty Anterior and Posterior Corneal Surface Wavefront Analysis: Descemet’s Stripping Automated Endothelial Keratoplasty versus Penetrating Keratoplasty
Table 1
Demographic and refractive data.
Controls
PK group
DSAEK group
Comparison
()
()
()
(*)
Patient's age (years)
.4
0.10
(40–87)
(21.8–86.2)
(43.2–84.8)
Time interval from surgery (months)
—
0.58
(19.1–47.3)
(18.7–43.1)
Time interval from suture removal (months)
—
0.43
(11.2–35.1)
(10.4–34.9)
BSCVA (Snellen lines)
0.001
(0.5–1.0)
(0.1–1.0)
(0.4–1.0)
Spherical-equivalent error (D)
0.01
(−3.7/2.5)
(−14.1/1.6)
(−2.1/3.9)
Mean anterior corneal curvature (D)
0.008
(Sim K1 + Sim K2)/2
(41.1–47.5)
(42.1–51.4)
(39.3–45.8)
Anterior corneal astigmatism (D)
0.0001
(Sim K2 − Sim K1) absolute value
(0.2–2.5)
(1.2–9.8)
(0.6–2.7)
Results are given as median ± SD (95% confidence interval).
*Kruskal-Wallis test. BSCVA: best spectacles-corrected visual acuity; D: diopters; Sim K: simulated keratometric value.
aSignificantly higher than the other groups.
bSignificantly lower than the other groups.