Characteristics of age-related macular degeneration on OCT

Abstract

Objective: To describe the characteristics of age-related macular degeneration (AMD), comment some of the factors involved between the OCT and clinical signs Patients studied: 56 patients (112 eyes) with 64 AMD eyes and 48 nonAMD eyes. Study method: Clinical description without the control group. Results: OCT characteristics: Average thickness of the retina was 267.8±40.1 μm, and the thickness of the fovea was 190.9±22.5 μm. Volume of the fovea was 9.7±1.4 mm³ . Neovascular occult was most common with 57.1%, followed by mixed-neovascular and neovascular at 33.0% and 9.8%, respectively. Indirect signs of neovascular were 37.5% of pigment epithelial detachment, 53.1% of retinal detachment, and 18.8% of haemorrhage. The hard drusen was 78.1%, soft drusen at 34.4%, pigment epithelial lesions at 100%, and retinal atrophy at 4.7%. Clinical and OCT correlations: The retinal thickness measured on OCT in patients with macular edema in clinical was 305.3±27.7 μm, and that of eyes without macular edema as 253.4±39.0 μm was observed. OCT was more effective than clinical in detecting neovascular, serous retinal detachment. OCT found a lower incidence of bleeding than clinical examination. Conclusions: The lesions on the OCT helped to accurately diagnose chorioneovascular, indirect signs of neovascular. There are differences between OCT and clinical, but OCT is only valid when combined with clinical.