Final answer:
Ophthalmic procedures requiring extensive anesthesia are performed under general anesthesia, facilitated by a highly coordinated medical team.
Step-by-step explanation:
Ophthalmic procedures requiring an extensive area of anesthesia are performed under general anesthesia. General anesthetics create a state of unconsciousness and immobility, which facilitates surgical procedures without the patient experiencing pain.
Teams, including surgeons, nurses, and anesthesia professionals, ensure patient safety by confirming key concerns for recovery and care through a time-out protocol before and after inducing anesthesia. General anesthetics can be administered as volatile liquids or gases using an anesthesia machine, which precisely delivers a mixture of oxygen, anesthetics, and ambient air to the patient.