Located in Takadanobaba, Shinjuku-ku, Tokyo, Maruo Eye Clinic specializes in diagnosing and treating glaucoma, strabismus, amblyopia, and prescribing contact lenses. Glaucoma is a chronic condition where the optic nerve is damaged, leading to narrowing of the visual field. It is the leading cause of blindness in Japan, affecting 1 in 17 people aged 40 and older. The clinic also focuses on pediatric ophthalmology, with particular expertise in treating children's eye conditions, especially strabismus and amblyopia. Comprehensive examinations are offered, including vision tests and prescription for glasses and contact lenses, visual field tests, and fundus examinations. Services are available in English and Korean, with credit card, debit card, and electronic payment accepted. The facility is barrier-free. Basic hours are 9:30 AM to 12:30 PM Monday through Saturday, with additional hours on Monday, Tuesday, Wednesday, and Friday from 2:00 PM to 6:30 PM, and on Thursday and Saturday from 1:00 PM to 4:00 PM. Closed on Sundays and holidays. Patients requiring time-consuming tests such as vision examinations or prescriptions are recommended to visit at least 30 minutes before closing. First-time contact lens wearers and those seeking orthokeratology suitability assessments should arrive at least 1.5 hours before closing.