The patient was a 58-year-old female. Due to sudden visual loss in his left eye for 20 days, he went to the Department of Ophthalmology, Baodi District People's Hospital, Tianjin. No abnormalities were found on the whole body examination. Eye examination: corrected visual acuity was 1.0 in the right eye and 50 cm index in the left eye (no improvement in correction); The intraocular pressure of both eyes was 18 mmHg (1 mmHg =0.133 kPa), and no abnormalities were found in the anterior segment examination of both eyes; A small number of yellow-white lesions in the posterior pole of the right fundus, and the condition of the left fundus is shown in A in Essence Picture 1. Coherence light tomography examination: focal retinal pigment epithelial bulge, choroidal thickening and vascular lumen dilation in the right eye; For the left eye, see B in Quintessence Picture 1. Fluorescein fundus angiography and indocyanine green angiography examination: characteristic polypoid intense fluorescent pulsation from choroidal circulation in the left eye (quintessential video image). Clinical diagnosis: polypoid choroidal vasculopathy of left eye; Retinal pigment epitheliopathy of the right eye. The left eye was given intravitreous injection of Conbercept ophthalmic injection 0.5 mg/0.05 ml once a month. After three consecutive injections, the condition was stable (C and D in Quintessential Picture 1), and the visual acuity of the left eye was 0.06 at follow-up.