Volume 8, Issue 4 (Winter 2005)                   hmj 2005, 8(4): 189-192 | Back to browse issues page

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Alishiri A, Saeedifar M, Shahab Jahanloo A, Ebrahimpoor K, Salari S. Evaluation of various factors relating to intraocular pressure and C/D ratio. hmj. 2005; 8 (4) :189-192
URL: http://hmj.hums.ac.ir/article-1-309-en.html
Abstract:   (9330 Views)
Introduction: Intraocular pressure (IOP) is determined by three factors: the rate of aqueous humor production by the ciliary’s body, the resistances to aqueous out flow across the trabecular meshwork and the level of episcleral vessel pressure. IOP varies with a number of factors, including: age, sex, race, systemic disease and diurnal variation. The purpose of this study is measurement of IOP and C/D ratio in normal population.
Methods: 200 persons who accompanied the patients referring to Shahid Mohammadi clinic underwent total eye examination, measure of IOP and C/D ratio. The obtained data was then subject to Chi-Square test and Pearson Correlation Coefficient analysis (p<0.05).
Results: In statistical result, IOP>14 in the left eyes of persons with history of familial glaucoma was more than persons without familial glaucoma (p<0.01). the same result was attained for the right eyes. Also C/D ratio was higher in persons with glaucoma familial history (p<0.01). There was a positive correlation between age and right eye IOP (r=0.37) and left eye IOP (r=0.41) also there was a positive correlation between age and C/D ratio.
Conclusion: Age has an important effect on increasing IOP and C/D ratio in both eyes, no difference between myopic and non myopic persons in IOP & C/D ratio, and there is not any effect of myopic on IOP and C/D ratio. The study suggested familial history of glaucoma has an important effect on increasing IOP and C/D ration in both eyes.
Full-Text [PDF 171 kb]   (987 Downloads)    
Type of Study: Research | Subject: General
Received: 2012/10/24

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