Ophthalmic surgery instrument, intraocular excision member, and manufacturing method therefor

An intraocular excision member having a single passage formed therein, having a thread portion at a base end thereof, having a bent-shaped blade portion and an opening of the passage at a tip end thereof, and used to excise a part in an eye in first ophthalmic surgery which is glaucoma surgery, wherein

• the thread portion is detachably attached to a grip portion held by a user,
• the grip portion is a dual-use grip portion having a first passage and a second passage separately formed therein for performing suction and supply of a perfusate, having a first opening, which is an opening of the first passage, and a second opening, which is an opening of the second passage, at a tip end thereof, and used for both the first ophthalmic surgery and second ophthalmic surgery different from glaucoma surgery,
• the grip portion has a thread portion to which the thread portion of the excision member is attached,
• the thread portion of the grip portion is formed so as to be screwable to a tip end member for treating an inside of an eye in the second ophthalmic surgery instead of the excision member, and
• the passage of the excision member is connected to the first passage in a state where the excision member is attached to the grip portion.