Early Refractive and Clinical Outcomes of High-Myopic Photorefractive Keratectomy as an Alternative to LASIK Surgery in Eyes with High Preoperative Percentage of Tissue Altered

Table 2

Patients with expected PTA > 40% for 110-micron LASIK and 100-micron LASIK.

	110-micron LASIK () (mean ± SD)	100-micron LASIK () (mean ± SD)	value
Simulated average PTA (%)	43.5 ± 2.2	42.6 ± 1.9	0.001
Age (years)	25.6 ± 6.4	25.7 ± 6.7	0.943
Spherical equivalent (D)	−8.20 ± 1.68	−8.62 ± 1.71	0.029
Average keratometry (D)	44.6 ± 1.5	44.7 ± 1.6	0.745
Pachymetry (µm)	515.1 ± 27.3	512.9 ± 27.5	0.473
Preoperative CDVA (Snellen decimals)	0.85	0.83	0.364

SD = standard deviation; D = diopters; PTA = percent tissue altered; CDVA = corrected distance visual acuity; UDVA = uncorrected distance visual acuity.