Taylor Swift reacts to some never-before-seen footage of her acting loopy after laser eye surgery and she teases what songs she’ll perform on Saturday Night Live. | The Tonight Show Starring Jimmy Fallon

Evolution of Refractive Surgery: From PRK to Modern LASIK | Prof. Dr. Mahipal S. Sachdev In this video, Prof. Dr. Mahipal S. Sachdev explains the fascinating evolution of refractive surgery. From the early PRK technique where the corneal surface was manually removed—causing significant discomfort—to the advanced LASIK procedure where a flap is created and the laser reshapes the cornea from within. This inside approach made surgery safer, more comfortable, and dramatically reduced recovery time.