<s>[INST] Hello doctor, My mother is diagnosed with cataract. The prescription of an eye specialist is attached (attachment removed to protect patient identity). Doctor has recommended for surgery and has prescribed some tests before surgery. My question is what is the most advanced surgery available at present without having pain. [/INST] Hi. As far as cataract surgery is concerned, any good surgeon would do under topical anesthesia (no injection). The most advanced option is Femtosecond laser-assisted surgery and the most advanced lens is Alcon Panoptix Trifocal lens. </s>