Located in Tanaka-machi, southern Oita City, Otsuka Eye Clinic is a comprehensive ophthalmology clinic providing a wide range of eye care services, specializing in cataract surgery. Since its opening, the clinic has performed over 1,576 cataract surgeries, along with 176 glaucoma surgeries, 113 vitreoretinal surgeries, 130 eyelid surgeries, 50 endoscopic lacrimal surgeries, 36 pterygium surgeries, 34 conjunctivochalasis surgeries, and 150 retinal photocoagulation procedures, demonstrating extensive surgical experience. In 2025, the clinic introduced minimally invasive glaucoma surgery (MIGS), expanding treatment options focused on reducing patient burden. Nitrous oxide sedation is also available to help alleviate anxiety during procedures. Orthoptists are on staff to conduct specialized examinations such as fundus photography. The clinic operates by appointment, with staff providing support from reception through general examinations, specialized tests, and consultation. Hours are 8:30 AM to 12:30 PM and 2:00 PM to 6:00 PM, closed on Thursdays, Sundays, and holidays. English assistance is available, and the facility offers parking and barrier-free access.