ESCRS - P101 - COMPARING THE CLINICAL OUTCOME OF TRANS- PHOTOREFRACTIVE KERATECTOMY AND TRADITIONAL PHOTOREFRACTIVE KERATECTOMY IN CORRECTION OF MODERATE MYOPIA: A RANDOMIZED CLINICAL TRIAL

COMPARING THE CLINICAL OUTCOME OF TRANS- PHOTOREFRACTIVE KERATECTOMY AND TRADITIONAL PHOTOREFRACTIVE KERATECTOMY IN CORRECTION OF MODERATE MYOPIA: A RANDOMIZED CLINICAL TRIAL

Published 2022 - 26th ESCRS Winter Meeting

Reference: P101 | Type: Abstracts | DOI: 10.82333/0tca-yx56

Authors: Nader Nassiri* 1 , Kourosh Sheibani 2 , Sara Kavousnezhad 3 , Zahra Rezaee Alam 4

1Ophthalmology,Imam Hossein Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Tehran,Iran, Islamic Republic Of, 2Ophthalmology,Basir Eye Health Research Center,Tehran,Iran, Islamic Republic Of, 3Ophthalmology,Vanak Eye Surgery Center, Tehran, Iran.,Tehran,Iran, Islamic Republic Of, 4Ophthalmology, School of Medicine, Shahid Beheshti University of Medical Sciences,Tehran,Iran, Islamic Republic Of

Purpose

To compare the clinical outcome of transepithelial photorefractive keratectomy (tPRK) and traditional PRK techniques.

Setting

Vanak Ophthalmology Clinic, Tehran, Iran

Methods

This randomized clinical trial included 120 eyes from 60 consecutive patients with moderate myopia referred to our clinic,  in year 2020. Patients were randomly assigned to be operated either using tPRK method (using Wong baker scale) or traditional PRK method.

Results

The improvement in patients' visual acuity (UCVA, BCVA) one and three months post surgery was statistically significant (p < 0.001 in both groups). The mean UCVA improvement was significantly higher in tPRK group (p = 0.031), but this difference was not statistically significant regarding the BCVA improvement. The mean Spherical Equivalent change in the PRK group in the one-month follow-up was 3.68 ± 1.00 and in the tPRK group it was 4.12 ± 0.92, indicating a better improvement in the tPRK group (p = 0.012). The mean haze in patients undergoing tPRK was significantly lower than the PRK group one moth postoperatively (p < 0.001). Also the patients undergoing tPRK experienced significantly less pain  (p = 0.027) and discomfort (p < 0.001) compared to the PRK group. There was no difference between the two groups regarding intraocular pressure after surgery.


Conclusion

The results of our study showed the superiority of the tPRK method over the PRK in some parameters when correcting moderate myopia.