J Cannula (J-Shaped Aspiration Cannula) is a precision ophthalmic surgical instrument designed for controlled aspiration of fluids, cortical material, viscoelastic substances, and surgical debris during cataract and anterior segment procedures. Featuring a distinctive J-shaped distal shaft, fine atraumatic aspiration tip, and precision fluid channel, this reusable and autoclavable instrument provides enhanced access, efficient aspiration, and reliable performance during microsurgical ophthalmic procedures.