Contrast sensitivity in β-thalassemic patients

Abstract

Aim of work This work aimed to diagnose any abnormalities in contrast sensitivity and retinal functions in β-thalassemic patients. Patients and methods Thirty patients diagnosed with b-thalassemia were included in this study. Detailed assessment of history and full ophthalmological examination were performed for all our cases. Contrast sensitivity and electroretinogram were performed for all our cases. Results Thirty β-thalassemic patients were included in this study. The mean age of the patients was 37 years; most of our patients were women. The main presenting symptoms were discomfort in night vision. Contrast sensitivity was significantly low in all our cases and electroretinogram showed low scotopic visual sensitivity in 23 cases. Conclusion Ophthalmic follow-up in β-thalassemic patients is mandatory.

Keywords

• B-thalassemia
• contrast sensitivity
• electroretinogram
• visual evoked potential