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- Title
Prevalence and Patterns of Astigmatic Refractive Errors in a Sample of Normal Iraqi Adults.
- Authors
Kereem, Alyaa Abood; Mehdy, Imad Salih; Adhab, Mohamed Dhahir
- Abstract
Background: Astigmatism is an important clinical and public health issue, it is one of major refractive errors affecting population, persistent astigmatism will cause ametropia and reduced visual acuity by prohibiting the formation of a clear image on the retina which will result in poor work performance. Subjects and Methods: In a cross-sectional study conducted in Ibn Al-Haitham teaching eye hospital from 10th of January 2017 to 20th of August 2018, volunteers with best corrected visual acuity of 6/6 were investigated. Evaluation of visual acuity, refraction, slit lamp bio microscopy and fundoscopy were performed for each participant. Written informed consent was obtained from all participants. Only phakic eye that could be reliably refracted without a previous history of ocular surgery were included. Data were collected and analysed using multiple logistic regression models, p value of less than 0.05% was considered statistically significant Results: 400 eyes of 200 participants were investigated in this study of whom 53.5% were males, as shown in table 1. The prevalence of astigmatism was 34.25%. Astigmatism significantly increased from 11.5% in the participants of 18-22 years old to 60% in the participants over 58-years old (P < 0.001), as shown in table 2. The prevalence of With- The-Rule, Against-The-Rule, and Oblique astigmatism was 11.7%, 20.3% and 2.25%, respectively. Against-The-Rule significantly increased with age (P < 0.001). The mean corneal astigmatism was 0.73 D which linearly increased with age (P < 0.001). Conclusion: In conclusion, 34.25% of our sample was having astigmatism according to the definition in this study, which means astigmatism is a common issue in our society. This study found that against the rule astigmatism increase with age.
- Subjects
REFRACTIVE errors; SAMPLING errors; PHOTOREFRACTIVE keratectomy; VISUAL acuity; ASTIGMATISM; JOB performance
- Publication
Kerbala Jorunal of Medicine, 2020, Vol 13, Issue 1, p2287
- ISSN
1990-5483
- Publication type
Article