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:: Volume 23, Issue 1 (3-2021) ::
J Gorgan Univ Med Sci 2021, 23(1): 103-107 Back to browse issues page
Evaluation of visual acuity and contrast sensitivity in early cataract
Monireh Mahjoob1 , Farkhonde Shahri 2
1- Assistant Professor of Optometry, Health Promotion Research Center, Department of Optometrics, School of Rehabilitation Sciences, Zahedan University of Medical Sciences, Zahedan, Iran.
2- Instructor of Optometry, Department of Optometrics, School of Rehabilitation Sciences, Zahedan University of Medical Sciences, Zahedan, Iran. , farkhondehshahri@yahoo.com
Abstract:   (1878 Views)
Background and Objective: Age-related cataract is one of the most important causes of blindness. Early detection of cataracts can help alleviate the problems caused by this disease. This study was performed to evaluate the visual acuity and contrast sensitivity of patients with early cataract.
Methods: This descriptive-analytical study was performed on 54 patients (108 eyes) in the age range of 35 to 50 years with early stage cataract referred to Alzahra Ophthalmology Hospital in Zahedan, souh-west of Iran. The ethnicity of all the participants was Baluchi and Sistani. After correcting the refractive errors if the inclusion criteria were met, visual acuity with E chart at 6 m and Pelli Robson contrast sensitivity chart at 3 m were measured as monocular.
Results: There was a significant correlation between visual acuity and contrast sensitivity (P=0.033, r2=0.205). The mean of visual acuity and contrast sensitivity were not significantly different in the two Baluchi and Sistani ethnicities. But visual acuity and contrast sensitivity were significantly different in the two genders (P<0.05).
Conclusion: Early cataract, although having a minor effect on visual acuity, can reduce contrast sensitivity. Therefore, measuring of contrast sensitivity in normal light condition in patients with early cataract who complain of blurred vision despite normal visual acuity can more accurately assess their visual function.
Keywords: Visual Acuity [MeSH], Contrast Sensitivity [MeSH], Cataract [MeSH]
Article ID: Vol23-13
Full-Text [PDF 364 kb]   (11189 Downloads)    
Type of Study: Original Articles | Subject: Ophtalmology
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Mahjoob M, Shahri F. Evaluation of visual acuity and contrast sensitivity in early cataract. J Gorgan Univ Med Sci 2021; 23 (1) :103-107
URL: http://goums.ac.ir/journal/article-1-3790-en.html
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Volume 23, Issue 1 (3-2021) Back to browse issues page
مجله دانشگاه علوم پزشکی گرگان Journal of Gorgan University of Medical Sciences
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