Visual Outcomes of Microkeratome-Assisted Anterior Lamellar Keratoplasty in Keratoconus: 5-Year Results

Table 1

Preoperative and postoperative UCDVA, BSCVA, MSE, mean of simulated Kmean, thinnest location thickness, and postoperative mean central graft thickness and mean residual posterior stromal thickness.

	Preoperative	1 month	3 months	6 months	1 year	5 years	value
UCDVA (logMAR)	1.56 ± 0.24^a	0.92 ± 0.27^ab	0.72 ± 0.29^b	0.86 ± 0.30	0.74 ± 0.22^b	0.62 ± 0.38^b	<0.001
BSCVA (logMAR)	1.18 ± 0.32^a	0.58 ± 0.24^b	0.43 ± 0.18^b	0.38 ± 0.12	0.27 ± 0.10^b	0.18 ± 0.12^b	<0.001
Manifest spherical equivalent (diopters)	−5.32 ± 2.39^a	0.34 ± 2.11^b	0.25 ± 2.69^bc	−1.35 ± 3.0	−2.57 ± 2.85^ac	−1.54 ± 2.13^abc	<0.001
Mean of simulated Kmean (diopters)	57.6 ± 7.85^a	42.76 ± 5.04^b	46.00 ± 3.83^b		46.99 ± 3.75^b	46.56 ± 3.46^b	<0.001
Thinnest location thickness (μ)	364.83 ± 57.4^a	422.50 ± 45.11^b	424.00 ± 40.87^b		426.00 ± 37.64^b	416.83 ± 40.14^b	<0.001
Mean central graft thickness (μm)		328.33 ± 20.834		328.9 ± 28.219	328.22 ± 26.682	328.22 ± 26.682
Mean residual posterior stromal thickness (μm)		151.67 ± 54.822		158 ± 53.281	158.33 ± 49.954	158.33 ± 49.954

Results (means ± standard deviation, Friedman test and Wilcoxon signed-rank test “Post hoc”) were organized in one table. Friedman test, means that do not share a letter are significantly different.