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ORIGINAL ARTICLE
Year : 2017  |  Volume : 4  |  Issue : 2  |  Page : 54-57

The effect of amblyopia on contrast sensitivity, color vision, and stereoacuity


Department of Orthoptic, Makka Eye Hospital, Faculty of Optometry and Visual Science, Al-Neelain University, Khartoum, Sudan

Correspondence Address:
Islam Altrifi Musa Suliman
Makkah Eye Complex, Khartoum
Sudan
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DOI: 10.4103/bijo.bijo_5_17

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Aim: This study aims to evaluate the contrast sensitivity, color vision, and stereoacuity in amblyopic eyes. Materials and Methods: A prospective, cross-sectional, hospital-based study includes 64 amblyopic patients (79 eyes), with age between 10 and 30 years, which represents the study sample. Thirty-six normal individuals of same age group were taken as a control group. The history of the patients was taken; vision, objective, and subjective refraction were performed. Pinhole was used to determine the amblyopia. Color vision, contrast sensitivity, and stereoacuity tests were done for both groups. Results: Anisometropic amblyopia represents 51.5% of cases. Significant decrease in contrast sensitivity was detected compared with the control group (P = 0.000). Color vision defect was found in 39.2% of amblyopic patients; 27.8% were tritanopes. Amblyopia affected stereoscopic vision in 48.5% of patients with mean 43.44 ± 95.17. Conclusion: Early detection of causes of amblyopia may prevent the bad Consequences.


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