LAUSR

A 60-year-old male presented to the eye clinic for an eye examination. Best-corrected visual acuity was 6/6 in each eye. Pupil testing, ocular motility and intraocular pressure were unremarkable. The anterior segment was normal for his age. Posterior segment examination of the right eye revealed a dull, white emboli within an arteriole superotemporal to the optic disc. Figure 1 is an image of the fundus of this eye captured using the Optomap (Optos PLC, Dunfermline, Scotland, UK). The posterior segment of the left eye was unremarkable. A perimetry visual field test was negative for a scotoma in the right and left eyes. Clinical and imaging findings confirmed the diagnosis of a platelet-fibrin embolus in the right eye. The patient was referred for a medical evaluation. His known vascular risk factors included hypertension, hyperlipidaemia and prior tobacco use. The cardiology and neurology consultationswere unrevealing. Laboratory testing showed an elevated creatinine level and reduced glomerular filtration rate. The patient was diagnosedwith stage 3a kidney disease. He has remained visually asymptomatic. Discussion