A Comparative Assessment of changes in High Order Aberrations Before and after ‎customized ablation photorefractive keratectomy in Hyperopic and Hyperopic ‎Astigmatism Patients

AUTHORS

Samar Nasehi 1 , * , Shahrokh Ramin 2 , Mohammad Alizadeh Amiri 2 , Mehdi Yaseri 3 , Mohammad Negaresh 4

1 MSC Student of Optometry, School of Rehabilitation, Shahid Beheshti University of Medicine, Tehran, Iran

2 Department of Optometry, Faculty of Rehabilitation of Shahid Beheshti University of Medicine, Tehran, Iran

3 Department of Statistics, Faculty of Rehabilitation of Shahid Beheshti University of Medicine, Tehran, Iran

4 Medical Practitioner, Azad University of Medicine, Tehran, Iran

How to Cite: Nasehi S , Ramin S , Alizadeh Amiri M , Yaseri M, Negaresh M . A Comparative Assessment of changes in High Order Aberrations Before and after ‎customized ablation photorefractive keratectomy in Hyperopic and Hyperopic ‎Astigmatism Patients, J Clin Res Paramed Sci. 2016 ; 5(1):e81447.

ARTICLE INFORMATION

Journal of Clinical Research in Paramedical Sciences: 5 (1); e81447
Published Online: April 16, 2016
Article Type: Research Article
Received: August 14, 2015
Accepted: January 29, 2016

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Abstract

Background and Aims: The previous studies have shown and with the knowledge of the complications of surgeries and improvements in the field of surgeries, customized photorefractive keratectomy(PRK) as a new method of surgery.This study is a comparative assessment of changes in High Order Aberration in Hyperopic and Hyperopic Astigmatism Patients pre- and post- customized ablation photorefractive keratectomy..

Materials and Methods: This cross-sectional study,20 eyes of 12 patients (8 female and 4 male) were underwent customized PRK technique by technolas 217p. The patients were divided into three groups based on the amount of subjective hypropia,hyperopia between +0.50 and +1.75D have been as the mild hyperopia group,hyperopia between +2.00 and +3.00D as moderate and high hyperopia group were included hyperopia between +3.25 and +5.00D. Subjective refraction ,best corrected visual acuity(BCVA) and high order aberration with 6 millimeter pupil was measured pre- and postoperatively.

Results: High order aberrations(HOA) was increased in each hyperopic groups especially in high hyperopia group.

Conclusion: Customized PRK surgery can be used as an effective, secure and predictable method of surgery for correction of hyperopia up to 3D but for patients with higher than 3 diopter of hypriopia it doesn’t seem like an effective method.

Keywords

Hyperopia Customized photorefractive Keratectomy High order aberration

© 2016, Journal of Clinical Research in Paramedical Sciences. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

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