[Performance of ultra-wide field retinophotography for screening of diabetic retinopathy]. / Performance de la rétinophotographie en ultra-grand champ dans le dépistage de la rétinopathie diabétique.

INTRODUCTION: Early diagnosis of diabetic retinopathy is a public health issue. Fundus retinophotography (FRP) is widely used for the detection of the disease. Recently, ultra-wide field retinophotography (WFRP) device allows imaging of approximately 80% of the retinal surface in a single image. The goal of the present study was to evaluate the efficacy of WFRP in the diagnosis and gradation of diabetic retinopathy compared to the gold standard of FRP. METHODS: The non-mydriatic Optos P200Tx was used for WFRP imaging. FRP in the 9 positions of gaze was then acquired with the Topcon TRC-NW6S after pupillary dilation. The processing time for each imaging modality was recorded. RESULTS: One hundred and sixteen eyes of 58 patients were included in this study. Fourteen eyes were excluded from the analysis due to insufficient imaging quality. WFRP sensitivity was 96% and specificity was 92%. Only 6 eyes received a higher severity grade of diabetic retinopathy by WFRP compared to FRP. In these cases, when the WFRP was analyzed in the same field as the FRP, the severity grade was similar for 5 of the 6 eyes. The mean time of acquisition was significantly lower for WFRP compared to FRP. CONCLUSION: WFRP is fast and effective in screening for diabetic retinopathy. The severity grade of the disease was similar to the gold standard of FRP in most cases. WFRP could thus be used in mass screening for diabetic retinopathy.