Correlation of visual recovery time after laser refractive surgery with preoperative keratometry and astigmatism among myopic astigmatism patients

Correlation of visual recovery time after laser refractive surgery with preoperative keratometry and astigmatism among myopic astigmatism patients

Introduction: Photorefractive keratometry (PRK) and laser in situ keratomileusis (LASIK) are among the many types of laser refractive surgery available for the correction of myopic astigmatism. The outcome of the procedure can be affected by several parameters which include patient’s age, optical zo...

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Main Authors: Akhtar Ali, Ahmad Nurfahmi, Md Mustafa, Md Muziman Syah, Rahim, Fadzilah Hanim, Ahmad Fauzi, Nadhirah, Mohd. Kamal, Khairidzan, Hilmi, Mohd Radzi
Format: Article
Language:English
Published: 2020
Subjects:
RE Ophthalmology
Online Access:http://irep.iium.edu.my/79020/
http://irep.iium.edu.my/79020/1/Ahamd%20Nurfahmi%20et%20al.%202020-%20CORRELATION%20OF%20VISUAL%20RECOVERY%20TIME%20AFTER%20LASER%20REFRACTIVE%20SURGERY%20WITH%20PREOPERATIVE%20KERATOMETRY%20AND%20ASTIGMATISM%20AMONG%20MYOPIC%20ASTIGMATISM%20PATIENTS.pdf
id iium-79020
recordtype eprints
spelling iium-790202020-02-26T15:03:50Z http://irep.iium.edu.my/79020/ Correlation of visual recovery time after laser refractive surgery with preoperative keratometry and astigmatism among myopic astigmatism patients Akhtar Ali, Ahmad Nurfahmi Md Mustafa, Md Muziman Syah Rahim, Fadzilah Hanim Ahmad Fauzi, Nadhirah Mohd. Kamal, Khairidzan Hilmi, Mohd Radzi RE Ophthalmology Introduction: Photorefractive keratometry (PRK) and laser in situ keratomileusis (LASIK) are among the many types of laser refractive surgery available for the correction of myopic astigmatism. The outcome of the procedure can be affected by several parameters which include patient’s age, optical zone diameter, epithelial hyperplasia, preoperative keratometry as well as astigmatism. Aim: This study aimed to determine the relationship between preoperative keratometry and astigmatism with visual recovery time after laser refractive surgery. Methods: Records of 174 eyes (174 patients) with myopic astigmatism who had been treated with either LASIK (71 eyes) or PRK (103 eyes) at IIUM Eye Specialist Clinic from January 2015 to June 2018, were retrospectively analyzed. Main outcome measure was the time taken for patients to achieve visual acuity (VA) 6/6 (equivalent to 0.00 LogMAR) postoperatively. Value for keratometry parameter was taken from corneal topography while astigmatism magnitude was taken from manifest refraction. Their correlation with visual recovery time was analyzed using Pearson correlation coefficient (PCC). P <0.05 was considered as statistically significant. Results: The mean preoperative astigmatism and mean keratometry was 0.9 ±0.76D and 43.65 ±1.23D respectively. A significant but weak positive correlation between preoperative astigmatism and visual recovery time was observed (P-value = 0.013; R = 0.188), while no correlation observed for mean keratometry (P-value = 0.305; R = 0.078). Conclusions: Preoperative astigmatism influenced the visual recovery time post laser refractive surgery in myopic astigmatism patients, but not keratometry. 2020 Article PeerReviewed application/pdf en http://irep.iium.edu.my/79020/1/Ahamd%20Nurfahmi%20et%20al.%202020-%20CORRELATION%20OF%20VISUAL%20RECOVERY%20TIME%20AFTER%20LASER%20REFRACTIVE%20SURGERY%20WITH%20PREOPERATIVE%20KERATOMETRY%20AND%20ASTIGMATISM%20AMONG%20MYOPIC%20ASTIGMATISM%20PATIENTS.pdf Akhtar Ali, Ahmad Nurfahmi and Md Mustafa, Md Muziman Syah and Rahim, Fadzilah Hanim and Ahmad Fauzi, Nadhirah and Mohd. Kamal, Khairidzan and Hilmi, Mohd Radzi (2020) Correlation of visual recovery time after laser refractive surgery with preoperative keratometry and astigmatism among myopic astigmatism patients. International Journal of Allied Health Sciences, 4 (1). pp. 1028-1041. E-ISSN 2600-8491
repository_type Digital Repository
institution_category Local University
institution International Islamic University Malaysia
building IIUM Repository
collection Online Access
language English
topic RE Ophthalmology
spellingShingle RE Ophthalmology
Akhtar Ali, Ahmad Nurfahmi
Md Mustafa, Md Muziman Syah
Rahim, Fadzilah Hanim
Ahmad Fauzi, Nadhirah
Mohd. Kamal, Khairidzan
Hilmi, Mohd Radzi
Correlation of visual recovery time after laser refractive surgery with preoperative keratometry and astigmatism among myopic astigmatism patients
description Introduction: Photorefractive keratometry (PRK) and laser in situ keratomileusis (LASIK) are among the many types of laser refractive surgery available for the correction of myopic astigmatism. The outcome of the procedure can be affected by several parameters which include patient’s age, optical zone diameter, epithelial hyperplasia, preoperative keratometry as well as astigmatism. Aim: This study aimed to determine the relationship between preoperative keratometry and astigmatism with visual recovery time after laser refractive surgery. Methods: Records of 174 eyes (174 patients) with myopic astigmatism who had been treated with either LASIK (71 eyes) or PRK (103 eyes) at IIUM Eye Specialist Clinic from January 2015 to June 2018, were retrospectively analyzed. Main outcome measure was the time taken for patients to achieve visual acuity (VA) 6/6 (equivalent to 0.00 LogMAR) postoperatively. Value for keratometry parameter was taken from corneal topography while astigmatism magnitude was taken from manifest refraction. Their correlation with visual recovery time was analyzed using Pearson correlation coefficient (PCC). P <0.05 was considered as statistically significant. Results: The mean preoperative astigmatism and mean keratometry was 0.9 ±0.76D and 43.65 ±1.23D respectively. A significant but weak positive correlation between preoperative astigmatism and visual recovery time was observed (P-value = 0.013; R = 0.188), while no correlation observed for mean keratometry (P-value = 0.305; R = 0.078). Conclusions: Preoperative astigmatism influenced the visual recovery time post laser refractive surgery in myopic astigmatism patients, but not keratometry.
format Article
author Akhtar Ali, Ahmad Nurfahmi
Md Mustafa, Md Muziman Syah
Rahim, Fadzilah Hanim
Ahmad Fauzi, Nadhirah
Mohd. Kamal, Khairidzan
Hilmi, Mohd Radzi
author_facet Akhtar Ali, Ahmad Nurfahmi
Md Mustafa, Md Muziman Syah
Rahim, Fadzilah Hanim
Ahmad Fauzi, Nadhirah
Mohd. Kamal, Khairidzan
Hilmi, Mohd Radzi
author_sort Akhtar Ali, Ahmad Nurfahmi
title Correlation of visual recovery time after laser refractive surgery with preoperative keratometry and astigmatism among myopic astigmatism patients
title_short Correlation of visual recovery time after laser refractive surgery with preoperative keratometry and astigmatism among myopic astigmatism patients
title_full Correlation of visual recovery time after laser refractive surgery with preoperative keratometry and astigmatism among myopic astigmatism patients
title_fullStr Correlation of visual recovery time after laser refractive surgery with preoperative keratometry and astigmatism among myopic astigmatism patients
title_full_unstemmed Correlation of visual recovery time after laser refractive surgery with preoperative keratometry and astigmatism among myopic astigmatism patients
title_sort correlation of visual recovery time after laser refractive surgery with preoperative keratometry and astigmatism among myopic astigmatism patients
publishDate 2020
url http://irep.iium.edu.my/79020/
http://irep.iium.edu.my/79020/1/Ahamd%20Nurfahmi%20et%20al.%202020-%20CORRELATION%20OF%20VISUAL%20RECOVERY%20TIME%20AFTER%20LASER%20REFRACTIVE%20SURGERY%20WITH%20PREOPERATIVE%20KERATOMETRY%20AND%20ASTIGMATISM%20AMONG%20MYOPIC%20ASTIGMATISM%20PATIENTS.pdf
first_indexed 2023-09-18T21:51:10Z
last_indexed 2023-09-18T21:51:10Z
_version_ 1777413779222429696

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