Ophthalmic surgical instrument

A surgical instrument comprising:

• a handle assembly comprising an actuation member;
• and
• a tip assembly comprising:
• an optical fiber for channeling light energy;
• a straightening tube coupled to the actuation member and circumscribing at least a portion of the optical fiber, wherein the straightening tube is linearly moveable between a first position and a second position;
• and
• a guiding member circumscribing the optical fiber and the straightening tube, wherein the guiding member comprises a curvable portion configurable between a pre-formed curved state defining a radius of curvature and a straightened state, wherein, as the straightening tube is linearly retracted relative to the guiding member from the first position to the second position, the guiding member transitions from its straightened state to its pre-formed curved state, wherein an external surface of the straightening tube contacts an internal surface of the guiding member when the straightening tube is in the first position and the guiding member is in the straightened state.