PMC7591971_01
(a) Fundus of the affected right eye of patient postsurgery, showing enlarged and tortuous vessels extending from the optic disc. A fibrous tuft is visible at the optic disc. (b) Normal fundus of the left eye.
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fig1
Without spontaneous clearing, the vitreous hemorrhage of the right eye was treated with a 23-gauge pars plana vitrectomy, which revealed dilated and tortuous retinal arteries as well as veins, extending from the optic disc with multiple communications and with some of them crossing the midline (Figure 1).
Silver wiring of the retinal veins in the superior (a), inferior (b), and temporal quadrant of the retina (c).
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Silver wiring of the retinal veins was pronounced in all four quadrants of the retina (Figure 2).
Fluorescein angiography of the affected right eye of the patient. (a) Abnormal arteriovenous communications with microangiopathy in the macula and an enlarged foveal avascular zone. (b, c) Diffuse capillary drop out in retinal periphery. No peripheral neovascularization is observed; however, pictures were taken 2 weeks after peroperative intravitreal anti-VEGF injection.
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fig3
Fluorescein angiography of the right eye demonstrated abnormal arteriovenous communications with an altered capillary network in the macula and diffuse ischemia in the retinal periphery (Figure 3).