Ozawa Eye & Internal Medicine Hospital, located in Yoshisawacho, Mito City, Ibaraki Prefecture, has served as a specialized eye hospital contributing to local healthcare for 116 years since its establishment in 1909. In 2025, the hospital performed 8,126 cataract surgeries, 1,613 vitreoretinal procedures, 1,358 glaucoma surgeries, and 2,362 eyelid and lacrimal duct operations, providing care backed by extensive surgical experience. The hospital maintains 13 ophthalmologists across the main hospital and four clinics in Ibaraki Prefecture, along with over 20 nationally certified orthoptists who conduct examinations and training, establishing a high-precision medical system through team-based care. For retinal detachment, same-day emergency consultation is available without a referral letter, and highly specialized surgeries including corneal transplantation and dacryocystorhinostomy are performed. With 46 beds—the second highest among ophthalmic hospitals in Japan—the facility accommodates both day surgery and inpatient procedures, and general anesthesia surgery is available for patients ranging from infants to the elderly. The internal medicine department has two full-time diabetes specialists who manage diabetic complications in coordination with ophthalmology care. The hospital provides English support, accepts credit cards and electronic payments, and offers parking and barrier-free facilities, serving as a major ophthalmic care center attracting patients from Ibaraki Prefecture as well as from Tokyo, Fukushima, and other surrounding areas.