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:: Volume 25, Issue 2 (Iranian Journal of Ophthalmology 2013) ::
2013, 25(2): 123-132 Back to browse issues page
Prevalence of Refractive Errors among the Elderly Population of Sari, Iran
AbbasAli Yekta Dr., Hassan Hashemi Dr., Hadi Ostadimoghaddam Dr., Shokrolah Shafaee, Reza Norouzirad *, Mehdi Khabazkhoob
, norouzirad@gmail.com
Abstract:   (13405 Views)

Purpose : To determine the prevalence of the refractive errors in the elderly population of Sari, Iran

Methods : In this study, after selecting the participants through random cluster sampling, they all received ocular examinations including visual acuity (VA) measurement, refraction, fundoscopy and tonometry. After measuring uncorrected visual acuity (UCVA), non-cycloplegic refraction was performed for all participants with an autorefractometer and the results were checked with manual retinoscopy.

Results : The prevalence of myopia, hyperopia, astigmatism and anisometropia were 19.7% [95% confidence interval (CI) 17.0-22.4], 39.5% (95% CI 36.1-42.9), 23.6% (95% CI 20.7-26.4), and 7.8% (95% CI 6.0-9.6), respectively. Male gender and cataract were also significantly correlated with myopia. Female gender and age were correlated with hyperopia. Astigmatism was significantly correlated with cataract and a decrease in age. With-the-rule (WTR), against-the-rule (ATR) and oblique astigmatisms were detected in 7.5%, 13.1% and 3.5% of the participants, respectively. Overall, the prevalence of at least one type of refractive error was 64.0% (95%CI 60.7-67.3) among the participants.

Conclusion : The results of this study indicated that hyperopia was the major anomaly in our population. Since the combination of presbyopia and hyperopia results in an undesirable visual condition in the elderly, it is important to pay proper attention to visual problems in this age group.


Iranian Journal of Ophthalmology 201325(2):123-132 © 2013 by the Iranian Society of Ophthalmology
Keywords: Refractive Errors, Elderly, Population Based Study, Iran, Prevalence
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Type of Study: Original | Subject: Anterior segment
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Yekta A, Hashemi H, Ostadimoghaddam H, Shafaee S, Norouzirad R, Khabazkhoob M. Prevalence of Refractive Errors among the Elderly Population of Sari, Iran. Iranian Journal of Ophthalmology. 2013; 25 (2) :123-132
URL: http://irjo.org/article-1-811-en.html

Volume 25, Issue 2 (Iranian Journal of Ophthalmology 2013) Back to browse issues page
مجله چشم پزشکی ایران Iranian Journal of Ophthalmology
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