Objective To evaluate frequency and risk factors of diabetic retinopathy in patients with type 2 diabetes. Methodology This prospective observational study was conducted from January 2017 to June 2017 at the outpatient department of Baqai Institute of Diabetology and Endocrinology (BIDE) and Baqai Medical University a tertiary care diabetes hospital of Karachi, Pakistan. Convenience sampling was done. Demographic, anthropometric, clinical, and biochemical data were collected, and ophthalmic screening was performed by funduscopy at a slit lamp biomicroscopy with the help 90 D fundus lens. Grading of diabetic retinopathy was done according to the modified Early Treatment Diabetic Retinopathy Disease Severity Scale (ETDRS) criteria. Result Retinopathy was present in 17.5% of patients. Non-sight-threatening retinopathy was found in 15.2% and sightthreatening retinopathy was found in 17.6%. In table 4, logistic regression analysis determined the relationship between retinopathy and its possible risk factors. In univariate logistic regression model, Age, poor glycemic control and longer duration of diabetes were found to be significant risk factors for developing retinopathy. In multivariate logistic regression model, duration of diabetes remained significantly associated with the development of retinopathy. Additionally, gender was not significantly associated in univariate analysis but it became significant after adjustment in multivariate model. Conclusion An early screening program reduces the risk of incidence of diabetic retinopathy. Hence, screening of retinopathy should be done once in a year.
PubMed was searched using key words “COVID-19”, “coronavirus”, and “SARS CoV‑2” in conjunction with “ophthalmology” and “eye” on 17th May 2020. Total 483 articles were identified. After screening eleven articles were included in the analysis. The frequencies of ocular manifestations and the presence of virus in conjunctiva were analyzed and final results were compiled.Ten out of eleven articleswere analyzed for ocular manifestations. In our analysis a total of 2115 cases had Covid 19, out of which 77 patients developed ocular manifestations (3.64%, 95% CI 2.88 – 4.53). The most common being conjunctival congestion. Twelve patients had SARS – CoV-2 in their ocular secretions confirmed by RT PCR test (2.61%, 95% CI 1.36 – 4.52). This meta-analysis concludes that conjunctiva is neither a preferred site of infection nor a preferred gateway for entry of SARS CoV-2 in the body. As a low risk of infection does exist, eye protective equipment should be used when treating COVID – 19 patients. Key Words: SARS CoV 2, COVID 19, Conjunctiva, Ophthalmology.
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