Diabetic Retinopathy (DR) was the fifth most prevalent cause of preventable blindness and thefifth most common cause of moderate to severe vision impairment between 1990 ̶̶ 2010. [1] Over one-third of the worlds 285 million diabetics have indications of DR, and a third of these have vision-threatening diabetic retinopathy (VTDR), which is defined as severe non-proliferative DR or proliferative DR (PDR) or the presence of diabetic macular edema (DME)[2]. DME is becoming more common in the world, owing to increase in type 2 diabetes. DME can be assessed using intravenous fluorescein angiography (FA) and optical coherence tomography (OCT)- noninvasive imaging technique [3]. OCT is important for early diagnosis in asymptomatic patients, as well as controlling and monitoring DME, depending on which the treatment method can be changed. Spectral domain optical coherence tomography (SD-OCT), which produces high-resolution retinal pictures, has a good reproducibility in measuring retinal thickness [7]. Longitudinal retinal B-scans and coronal C-scans are produced using the OCT ophthalmoscope. As a result, it delivers information that traditional imaging techniques or fundus inspection cannot.