Correlation between optical coherence tomographic patterns and visual acuity in eyes with diabetic macular edema

Abstract

Background Diabetes mellitus is a disease of high prevalence as well as incidence and consequence worldwide. An approximate 387 million people have been found to be affected by diabetes mellitus worldwide in 2013. It is presumed that the number of people with diabetes will almost double the current numbers by 2035. Aim of the work To determine what is the most important predictor assessed by spectral domain optical coherence tomographic tomography (SD-OCT) correlates with best corrected visual acuity (BCVA) in eyes with untreated diabetic macular edema (DME). Patients and Methods Sixty eyes of forty three diabetic patients were included in this observational ,non intervention study. The patients’ ages ranged from 50 to 70 years. All cases had DM type2. This study was conducted at ophthalmic clinic of Al Mataria teaching Hospital from January 2018 till November 2018. Informed consent was obtained from all participants before enrolment. All applicable institutional regulations concerning the ethical use of human volunteers were followed during this research. Results In this study, we observed statistically significant correlation between best corrected visual acuity (BCVA) and central subfield thickness (C. S. T), moreover this study detect that the most important OCT pattern affecting vision is the presence of central macular edema. Conclusion In untreated diabetic macular edema cystoid macular edema was the most common OCT pattern and has worest vision during 1st ophthalmic examination