Abstract

Introduction: Diabetes mellitus is one of the most prevalent and most important diseases. The incidence of cataracts in diabetic patients is 2-5 times more likely than non-diabetics; it, also, occur in much a lower age. Epidemiologic studies show that cataract is the most common cause of visual impairment in adults suffering from diabetes. Methodology: In this review article, the databases Medline, Cochrane, Science Direct, and Google Scholar were thoroughly searched to identify the studies investigating Cataracts and diabetes mellitus. In this review, the papers published until early January 2017 that were conducted to study the Cataracts and diabetes mellitus were selected. In searching for the articles, those English papers were selected that had investigat Cataracts and diabetes mellitus and it's complications. Findings: Diabetes mellitus is a systemic disorder that has, also, multiple non-ocular symptoms. Diabetes affects morphological, metabolic, physiological, and clinical aspects of the eye. Changes in the cornea associated with diabetes, called "diabetic keratopathy", is present in over 70 of patients. Conclusion: Taking appropriate measurements against cataracts in diabetic patients requires special attention to the systematic condition of other parts of the eye. For now, many previously untreated patients would benefit from acceptable results. It is, unlike the past, recommended to perform surgery earlier than usual to provide proper treatment of retina complications.