Myopia Clinical Trial
Official title:
Corneal Wavefront Guided Versus Aberration Free Transepithelial Photorefractive Keratectomy in Myopic Patients With High Pre-existing Corneal Higher Order Aberrations
compare the efficacy, safety and predictability of corneal wavefront guided (WFG) and aberration free ablation in single-step transepithelial photorefractive keratectomy (TransPRK) in myopic patients with high pre-existing corneal higher order aberrations (HOAs).
Objectives:to compare the efficacy, safety and predictability of corneal wavefront guided
(WFG) and aberration free ablation in single-step transepithelial photorefractive keratectomy
(TransPRK) in myopic patients with high pre-existing corneal higher order aberrations (HOAs).
Background: Corneal WFG and aberration free treatments have been proposed as methods to
achieve better visual, refractive, and optical outcomes.
Methods: prospective case series was conducted in El-Hekma Eye-LASIK center, Menoufia
governorate, Egypt during the period from January 2017 to December 2017. TransPRK was
performed to eligible myopic patients with or without astigmatism with corneal HOAs ≥ 0.35 µ
utilizing either aberration free or corneal WFG patterns provided by ORKCAM software (SCHWIND
eye-tech-solutions, Kleinostheim, Germany). Uncorrected distance visual acuity (UDVA),
manifest and cycloplegic refractions, best spectacle corrected distance visual acuity (CDVA),
thorough slit lamp examination and corneal topography were assessed and repeated six months
postoperatively.
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