This depends on the type of operation and your surgeon.
Postoperative treatment is normally started once the dressing is removed from the eye. If your surgery does not require a dressing on your eye, you will probably start to administer eye drops a few hours after the operation. Your surgeon, however, will tell you the best regimen to follow in your case. Do not hesitate to ask your surgeon after the surgery.
If you have any questions, please call the A&E Department on +34 934 155 637