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Prospective randomized comparison of simultaneous and sequential bilateral photorefractive keratectomy for the
M Vetrugno1, A Maino, L Cardia
1Department of Ophthalmology-Otorhinolaryngology, University of Bari, Italy. oftalm@cimedoc.uniba.it
Background And Objective:
To evaluate the efficacy and safety of simultaneous bilateral photorefractive keratectomy (PRK).
Patients And Methods:
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.
Results:
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).
Conclusions:
Simultaneous bilateral PRK was safe and effective, without any significant difference from sequential treatment.