Many steps and procedures are followed to ensure that the correct eye is operated on during each operation. Revision of the digital medical record by the nurse, the anaesthesiologist and the surgeon himself ensures that everyone is aware of which eye is to be operated on. In addition, before entering the operating theatre, the skin on the eyelids, cheek and eyebrow is painted in the pre-anaesthetic room with an iodine-based antiseptic solution that is a dark brown colour.
You are therefore 100% guaranteed that when you enter the operating theatre, nobody should be thinking about asking which eye is to be operated on.