Table 1.

Demographic data of the participants in the study.

Parameter	Values
Number of patients (eyes)	36 (36)
Mean age ± SD, years	32.4 ± 10.8
Gender (male/female)	20/16
Keratometry, D
K max	51.5 ± 3.7
K min	44.1 ± 2.6
Mean corneal astigmatism ± SD, D	−5.1 ± 1.3
Mean refractive cylinder ± SD, D	−4.8 ± 1.2
Mean refractive sphere ± SD, D	−4.3 ± 1.8
MRSE	−6.9 ± 1.7
Causes of irregular cornea, number (%)
Keratoconus	10 (27.8%)
Postkeratoplasty	7 (19.4%)
PMD	6 (16.7%)
Post-LASIK ectasia	5 (13.9%)
Post-intrastromal rings	4 (11.1%)
Posttrauma	4 (11.1%)

D: diopter; MRSE: mean refractive spherical equivalent.