Diabetic macular oedema (DMO) is a common complication of diabetic retinopathy (DR) and a leading cause of vision impairment¹. It is characterised by the accumulation of fluid in the macula, resulting from the rupture of the retinal barrier. The integrity of the retinal barrier is compromised by hyperglycaemia-induced microvascular damage and activation of inflammatory pathways². DMO can occur at any stage of retinopathy, but the prevalence tends to increase as a patient’s duration of diabetes and severity of DR increases¹.
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