XQuick Search
Comparison of Long-Term Visual and Refractive Results of Transepithelial and Mechanical Photorefractive Keratectomy
Basak Saracoglu Yilmaz1, Alper Agca2, Muhittin Taskapili31Department of Ophthalmology, University of Health Sciences Gaziosmanpasa Training and Research Hospital, Istanbul, Turkey2Department of Ophthalmology, Dunya Goz Hospital, Istanbul, Turkey
3Department of Ophthalmology, University of Health Sciences Beyoglu Eye Training and Research Hospital, Istanbul, Turkey
INTRODUCTION: The aim of the study was to present and compare 2 years results of mechanical photorefractive keratectomy (M-PRK) and transepithelial photorefractive keratectomy (T-PRK) for myopia.
METHODS: One hundred and nine eyes of 55 patients were included in this retrospective study. The mean age of the pa-tients was 26.9±5.2 years. Forty-four eyes (40.4%) had M-PRK and 65 eyes (59.6%) had T-PRK. Follow-up time was 2 years. Refractive errors (RE), uncorrected visual acuity (UCVA), and high-order corneal aberrations were compared.
RESULTS: The mean RE was −2.33±0.88 D and the mean UCVA was 0.24±0.17 logMAR at baseline for M-PRK patients. At month 24, those measurements were changed to −0.27±0.32 D and 0.99±0.04 logMAR. The mean RE was 2.19±0.73 D and the mean UCVA was 0.23 ± 0.15 logMAR at baseline for T-PRK patients. At month 24, those measurements were changed to −0.14±0.32 D and 0.99±0.01 logMAR. The mean REs significantly decreased and the mean UCVA significantly increased after both type of surgeries (all p<0.001). In M-PRK group, 4 mm zone total corneal aberration and 6 mm total-coma-spherical corneal aberrations were statistically significantly increased in post-operative term. In T-PRK group, only 6 mm total-spherical corneal aberrations were statistically significantly increased in post-operative term. There was no serious complication during surgeries or follow-up time.
DISCUSSION AND CONCLUSION: M-PRK and T-PRK were a safe and effective in the treatment of myopia in 2 years term. Some high-order aberrations may be increase after those treatments.
Manuscript Language: English
