“…Final corrected distance visual acuity ranged from 20/15 to 20/70 2, 3, 4, 5, 6, 7, 8, 9. Refractive errors, before any additional refractive surgical procedure, were very varied: one eye was emmetropic 7 ; one eye showed low mixed astigmatism 5 ; four eyes showed moderate myopic astigmatism,3, 4, 6 and one eye had high myopic astigmatism that required additional photorefractive keratectomy 8 …”