Outcomes of photorefractive keratectomy in patients with atypical topography
Journal Title: Electronic Physician - Year 2017, Vol 9, Issue 11
Abstract
BACKGROUND: Photorefractive keratectomy (PRK) is at risk of serious complications such as corneal ectasia, which can reduce corrected distance visual acuity. The rate of complications of PRK is higher in patients with atypical topography. OBJECTIVE: To determine the outcomes of photorefractive keratectomy in patients with atypical topography. METHODS: This cross-sectional study was done in 2015 in Shiraz in Iran. We included 85 eyes in this study. The samples were selected using a simple random sampling method. All patients were under evaluation for uncorrected distance visual acuity, corrected distance visual acuity, manifest refraction, corneal topography, central corneal thickness using pentacam, slit-lamp microscopy, and detailed fondus evaluation. The postoperative examination was done 1-7 years after surgery. Data were analyzed using IBM SPSS 21.0 version. To analyze the data, descriptive statistics (frequency, percentage, mean, and standard deviation), chi-square, and independent samples t-test were used. RESULTS: We studied 85 eyes. Among the patients, 23 (27.1%) were male and 62 (72.9%) were female. Mean age of the participants was 28.25±5.55 years. Mean postoperative refraction was - 0.37±0.55 diopters. Keratoconus or corneal ectasia was not reported in any patient in this study. There was no statistically significant difference between SI index before and after operation (p=0.736). Mean preoperative refraction was -3.84 ± 1.46 diopters in males and -4.20±1.96 diopters in females; thus there was not statistically significant difference (p = 0.435). CONCLUSION: PRK is a safe and efficient photorefractive surgery and is associated with low complication rate in patients with atypical topography
Authors and Affiliations
Hossein Movahedan, Ehsan Namvar, Mohsen Farvardin
Keywords
Related Articles
- EP ID EP332899
- DOI 10.19082/5684
- Views 90
- Downloads 0
Secondary traumatic stress, dissociative and somatization symptoms in spouses of veterans with PTSD in Zahedan, Iran
INTRODUCTION: Secondary traumatic stress is a disorder which occurs in spouses and people with close relation to someone with posttraumatic stress disorder. Like PTSD, it seems that STS also occurs with other psychiatric...
Immunosuppressive therapy in children with steroid-resistant, frequently-relapsing, and steroid-dependent idiopathic nephrotic syndrome: a single center experience.
Immunosuppressive agents are recommended for the management of children with steroid-resistant, frequently-relapsing, and steroid-dependent idiopathic nephrotic syndrome, i.e., SRNS, FRNS, and SDNS. This study evaluated...
Congenital Cutis Laxa Type 2 Associated With Recurrent Aspiration Pneumonia and Growth Delay: Case Report.
Cutis laxa is a connective tissue disorder caused by deficiency of fibro elastic plexus, which can involve multiple organs. It is inherited in autosomal dominant, autosomal recessive, and X-linked. Autosomal recessive cu...
Trends of geographic inequalities in the distribution of human resources in healthcare system: the case of Iran
INTRODUCTION: Considering the scarcity of skilled workers in the health sector, the appropriate distribution of human resources in this sector is very important for improving people's health. Having information about the...
Exploring Iranian β-Thalassemia major patients’ perception of barriers and facilitators of adherence to treatment: A qualitative study
BACKGROUND: Despite the clinical importance of adherence to treatment in β-Thalassemia Major (β-TM) patients, poor adherence remains a prevalent and persistent problem in these patients. OBJECTIVE: The aim of this study...