Volume 12, Number 4 (2-2010)                   amuj 2010, 12(4): 79-85 | Back to browse issues page


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Falahati J, Noorbakhsh M, Jadidi R A. Degenerative myopia and its risk factors as the irrevocable cause of low vision in myopic patients. amuj. 2010; 12 (4) :79-85
URL: http://amuj.arakmu.ac.ir/article-1-374-en.html

Assistant Professor
Abstract:   (10907 Views)
Background: Myopia is the most common refractive defect and degenerative myopia is one of the five causes of blindness in the world. The aim of this study is to examine degenerative myopia and its related risk factors. Materials and Methods: In this cross-sectional study, the data was collected through a questionnaire along with the auto-refraction apparatus, which was utilized for determining the myopic degree. The inclusion criteria for this study were the age above the 10, myopia or astigmatic myopia, apparent media (in fonduscopic examination), and the absence of age related retinal defect. Results: A total 65 patients participated in this study 51% of whom had degenerative myopia. Choroid neovascularization was observed in 17.65% of the subjects. There was a significant difference in the relationship between hypertension(r=28%), diabetes mellitus (r =22%) and glaucoma, and degenerative myopia however, this difference was not observed between cataract and myopia. The correlation coefficients between hypertension and diabetes mellitus, and degenerative myopia were 28% and 22%, respectively. This correlation was very low in the case of glaucoma. The greatest correlation existed between the myopic crescent and hypertension (r=0.295%). In all of the cases, the correlation coefficient between diabetes mellitus and all the myopic complications was positive but below 40%. Conclusion: The majority of the patients had degenerative myopia. Hypertension and diabetes mellitus were the most common co-existing diseases. Noticing the correlation coefficient existing between hypertension and myopia, the need for controlling hypertension and diabetes mellitus for preventing retinal complications is emphasized. Also, for preventing the adverse effects of degenerative myopia in retinal defects, controlling glaucoma is suggested.
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Subject: General
Received: 2009/07/3

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