Waisberg, E; Georgiou, M; Michaelides, M; Rajendram, R; (2021) Unilateral congenital non-syndromic retinal vessel dilation and tortuosity. American Journal of Ophthalmology Case Reports , 23 , Article 101160. 10.1016/j.ajoc.2021.101160.

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Abstract

Purpose: To present a case of atypical unilateral developmental retinal vascular anomaly. Observations: A 10-year-old girl presented to her paediatrician after an absent red reflex was noted in a photograph. She had right anisometropic amblyopia and right iris heterochromia, but was otherwise healthy, with no visual complaints. Fundus examination revealed abnormal right retinal vasculature in keeping with an arteriovenous malformation (AVM). OCTA performed at age 16, showed large aberrant veins in the right eye, whereas OCTA B-Scans showed that the same eye had significantly higher retinal blood perfusion than the unaffected eye. Conclusions and Importance: OCTA is a valuable, non-invasive emerging method of evaluating patients with AVMs, with this patient having a unique unilateral presentation of a developmental anomaly, without evidence of progression or other vessel malformation. OCTA allowed assessment of flow between the affected and non-affected eye, quantifying the greater blood perfusion in the affected eye due to the AVM.

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