The patient was a 70-year-old male. Because the visual acuity of his left eye decreased for 1 month, he was seen in the Department of Ophthalmology, West China Hospital, Sichuan University. Not accompanied by red eyes, eye pain, eye swelling, photophobia, tearing and other discomfort. Eye examination: naked eye visual acuity was 0.6 for the right eye and 0.8 for the left eye; IOP was 12.8 mmHg (1 mmHg =0.133 kPa) in the right eye and 13.5 mmHg in the left eye; Two superficial scleral veins were thick and filled under the nasal conjunctiva of the left eye, the corneas of both eyes were transparent, the depth of the anterior chamber was normal, and a mass-like bulge of dark red mulberry-like mass was seen on the iris surface of the left eye from 8: 00 to 9: 00, with a size of about 2 mm ×2 mm (essence pictures 1A and 1B). The pupil was round, about 3 mm in diameter, and it was directly and indirectly sensitive to light. The lens of the right eye was opaque, and the intraocular lens of the left eye was in place. No abnormalities were observed in both fundus. Coherence light tomography and ultrasound biomicroscopy of the anterior segment of the eye are shown in essence pictures 2A and 2B; B-ultrasound and fluorescein fundus angiography in both eyes showed no abnormalities. Clinical diagnosis: left eye iris hemangioma; After senile cataract extraction and intraocular lens implantation in left eye; Senile cataract of the right eye. No special treatment was given, and the patient was instructed to visit the outpatient clinic regularly.