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Congenital Retinal Macrovessel Causes Reduced Retinal Sensitivity at the Macula

Purpose To report a case of reduced macular sensitivity at the macula due to congenital retinal macrovessel as measured by liquid crystal display (LCD) microperimetry. Methods Case report. Results We present a patient with normal visual acuity OU, with fundus OS revealing a congenital retinal macrovessel. LCD microperimetry of the macular area OS revealed reduced sensitivity of the superior retina (median sensitivity, 13.0 dB) compared to the inferior retina (median sensitivity, 15.0 dB) based on numerical values of the sensitivity. Such a difference of sensitivity was not found in OD which had a normal fundus ezamination. Conclusions The patient's congenital macrovessel may be causing a relative angioscotoma with reduced retinal sensitivity in the superior half of the macula as compared to the inferior half.