Nakayasugai Ganka Clinic is an ophthalmology clinic located in Higashi-Ikebukuro, Toshima Ward, Tokyo. Based on 25 years of clinical experience at university hospitals, the clinic provides evidence-based, sincere ophthalmic care. It handles all ophthalmic conditions including refractive errors, conjunctivitis, corneal diseases, cataracts, glaucoma, and retinal diseases. The clinic specializes in eye strain clinics, laser treatment for retinal and glaucoma conditions, and Botox injections for eyelid spasms. It also provides contact lens prescriptions and fitting guidance, as well as second opinions regarding ophthalmic conditions, with English language support and barrier-free accessibility.