All eye surgery has some risks. Any operation is not done unless the benefits outweigh the risks. Risks include, but are not limited to, bleeding, infection, swelling, scarring, retinal detachment, a droopy eyelid, double vision, loss of vision, or even loss of the eye. In general, many of these risks are not common, however, you may want to discuss the benefits and risks with your surgeon should you have any further questions. All surgery also has the possible need for another operation.