Prospective randomized comparison of simultaneous and sequential bilateral photorefractive keratectomy for the correction of myopia
Vetrugno, M.; Maino, A.; Cardia, L.
Ophthalmic Surgery and Lasers 31(5): 400-410
2000
ISSN/ISBN: 1082-3069 PMID: 11011709 Document Number: 516750
To evaluate the efficacy and safety of simultaneous bilateral photorefractive keratectomy (PRK). There were 52 patients (104 eyes) with myopia less than -6 diopters entered in this prospective trial and randomized to simultaneous or sequential bilateral PRK. Main outcome measures were uncorrected visual acuity (UCVA), percentage of eyes within +/-0.5 D of attempted outcome, present pain intensity (PPI) and total pain rating index (PRI(R)T) scores resulting from McGill the Pain Questionnaire, subjective symptoms, haze, and patient satisfaction. Follow-up extended to 14 months. There was no significant difference in UCVA (P=0.996) and percentage of eyes within +/-0.5 D of attempted correction (P=0.932). Present pain intensity and PRI(R)T scores were significantly higher in the sequential group (P=0.037; P=0.034). The percentage of satisfied patients after bilateral PRK was significantly higher in the simultaneous group (P=0.036). Simultaneous bilateral PRK was safe and effective, without any significant difference from sequential treatment.