Farzana Khan, Robina Usman, Shamaila Wadud, Shafaq Zafar, Zain-ul Abideen.
Association of vitamin D with retinopathy in patients with type 2 diabetes mellitus.
J Med Sci Jan ;23(2):58-61.

Objective: The purpose of this study was to establish an association of vitamin D with diabetic retinopathy. Material and Methods: This study was conducted at Endocrinology ward Hayatabad Medical Complex. It was a descriptive cross sectional study which was conducted for six months from January 2012 to June 2012 in which 100 patients after undergoing inclusion and exclusion criteria for having diabetes with and without retinopathy were enrolled Results: Patients with diabetic retinopathy had lower vitamin D levels than those without diabetic retinopathy (P < 0.01). Conclusion: This study suggests that patients with diabetic retinopathy have low vitamin D levels.

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