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Most cataract surgeries are performed under
local anaesthesia. The patient
remains conscious during the surgery. This involves the
injection of a local anaesthetic drug above and below the
eye. The drug has a pain – killing
effect (analgesia) it also keeps the eye still during
surgery (akinesia) so that
sudden eye movements that may complicate the surgery do not
occur.
General anaesthesia is
sometimes preferred in children, mentally handicapped
patients and others who are likely to prove uncooperative
during surgery.
Phacoemulsification is
sometimes performed using topical anaesthesia in the form of
anaesthetic eye drops. While this produces
analgesia ainesia does not
occur. A high level of patient cooperation is therefore
required.
The decision regarding the type of anaesthesia will be taken
by the doctor after examining the patient. |