Dr.Sumant Shekhar, S21523
Introduction: Contrast sensitivity is closely correlated with the ability to detect and discriminate between visual targets. Pterygium causes reduction in contrast sensitivity. Both spatial contrast sensitivity and glare disability are worsened in patients with pterygia even when the Snellen’s visual acuity is minimally affected. The present study is to determine the effect of pterygium excision on induced astigmatism and contrast sensitivity.
Material and methods: It is prospective interventional study. A total of 50 patients will be selected over a period of 6 months. The astigmatism induced by primary pterygium is measured by automated keratometer and Contrast sensitivity is measured by Pelli Robson contrast sensitivity chart.
Result: After Surgical excision of pterygium there is improvement in contrast sensitivity, visual acuity and reduction in astigmatism
Conclusion: Pterygium surgery significantly reduces corneal topographic astigmatism and improves contrast sensitivity.
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