Abstract: A crushing tip dramatically increases a contact area between the crushing tip ultrasonic vibrated and a crystalline lens, compared to conventional crushing tips, and can efficiently crush and emulsify the crystalline lens. In the crushing tip, which is inserted into the crystalline lens of an eye of a patient at a time of an eye surgery for crushing, sucking, and discharging the crystalline lens by providing the ultrasonic vibrations, one or a plurality of partition walls is provided in such a way as to cross a through hole inside the through hole of a cylindrical tip main member. A tip of the partition wall may project from a tip of the tip main member, and a projecting portion may extend to an outer peripheral edge of the tip main member in a width direction as well.

Abstract: A crushing tip dramatically increases a contact area between the crushing tip ultrasonic vibrated and a crystalline lens, compared to conventional crushing tips, and can efficiently crush and emulsify the crystalline lens. In the crushing tip, which is inserted into the crystalline lens of an eye of a patient at a time of an eye surgery for crushing, sucking, and discharging the crystalline lens by providing the ultrasonic vibrations, one or a plurality of partition walls is provided in such a way as to cross a through hole inside the through hole of a cylindrical tip main member. A tip of the partition wall may project from a tip of the tip main member, and a projecting portion may extend to an outer peripheral edge of the tip main member in a width direction as well.

Abstract: An entoptoscopic instrument (10) comprises a light source unit (20), a light transmitting member (30), and a mirror member (40). The light source unit (20) comprises a filter for cutting off harmful wavelength components from illumination light to restrict the wavelength components of the illumination light to a range between 440 nm and 880 nm.