Three Cases of Congenital Retinal Macrovessel, One Coexisting with Cilioretinal Artery

In this report, we describe three cases of retinal macrovessel. Two of the three patients presented to our clinic for annual eye exam and had no visual complaints. The third patient presented because of vision loss in the left eye. Two patients had 20/20 best corrected visual acuity in both eyes and the third patient had 20/20 in the right eye, 20/25 in the left eye. Pupillary exams were normal. Slit-lamp examinations of the anterior segment were unremarkable. Fundus examination revealed macrovessels in the left eyes of two patients and in the right eye of one patient. The patients underwent complete ophthalmological examinations including color fundus photography for all three patients and optic coherence tomography, fundus autoflorescence, and fundus fluorescein angiography for two of the patients. Cilioretinal artery coexisting with macrovessel was seen angiography in one case. Congenital retinal macrovessel is a rare vascular condition. It is often unilateral and the vessel is an aberrantly large branch of the retinal arteries or veins. They may cross the fovea and their visual impact is minimal. The coexistence of congenital retinal macrovessel and cilioretinal artery is very rare. Visual impairment may occur in congenital retinal macrovessel due to retinal cavernous hemangioma, foveal cysts, central serous retinopathy, and other retinal vascular abnormalities.