Topical anesthesia involves the placement of drops/gel to numb the surface and an injection of an anesthetic inside the front part of the eye (may burn a bit). This allows for the quickest recovery of vision - but does require the patient to remain still and look at a bright light. If you are claustrophobic, sensitive to lights, or nervous about the surgery, peribulbar anesthesia may be a better option.
Peribulbar anesthesia involves the injection of a medication around the eye after being given intravenous sedation. This numbs the eye and prevents its movement and sight for 4-6 hours. You will wear a patch after the surgery and you can occasionally get bruising around the eye.
Talk to you eye surgeon about which option is best for you!