title: Photorefractive Keratectomy with Adjunctive Mitomycin C for Residual Error after Laser-Assisted In Situ Keratomileusis Using the Pulzar 213 nm Solid-State Laser: Early Results.
abstract: Purpose. To evaluate the accuracy, efficacy, stability, and safety of photorefractive keratectomy (PRK) enhancement using the Pulzar 213 nm solid-state laser (SSL) with adjunctive Mitomycin C in eyes previously treated with laser assisted in situ keratomileusis (LASIK) with residual error of refraction. Methods. This is a prospective noncomparative case series of 16 eyes of 12 patients who underwent PRK for residual refractive error after primary LASIK. Mitomycin C 0.02% was used after the PRK to prevent haze formation. Outcomes measured were pre- and postoperative manifest refraction spherical equivalent (MRSE), uncorrected (UDVA) and best-corrected distance visual acuity (CDVA), and slit lamp evidence of corneal complications. Results. The mean UDVA improved from 20/70 preoperatively to 20/30 postoperatively. The average gain in lines for the UDVA was 2.38. After six months of followup, the postoperative MRSE within 0.50 D in 56% (9) of eyes and 94% (15) eyes were within 1.0 diopters of the intended correction. No eyes developed haze all throughout the study. Conclusion. PRK enhancement with adjunctive use of Mitomycin C for the correction of residual error of refraction after LASIK using the Pulzar 213 nm solid-state laser is an accurate, effective, and safe procedure.
authors.affiliation: Refractive Surgery Service, Manila Vision Correction Center, Ermita, 1004 Manila, Philippines.
authors.forename: Maya Fe
authors.initials: MF
authors.lastname: Ng-Darjuan
authors.affiliation: Refractive Surgery Service, Manila Vision Correction Center, Ermita, 1004 Manila, Philippines.
authors.forename: Raymond P
authors.initials: RP
authors.lastname: Evangelista
authors.affiliation: Refractive Surgery Service, Manila Vision Correction Center, Ermita, 1004 Manila, Philippines ; Department of Ophthalmology and Visual Sciences, Sentro Oftalmologico Jose Rizal, Philippine General Hospital, University of the Philippines Manila, Taft Avenue, 1000 Manila, Philippines.
authors.forename: Archimedes Lee D
authors.initials: AL
authors.lastname: Agahan