The double vision after general anaesthesia may be related to the effect of anaesthetic drugs, which inhibit the nerves in the eyes and cause temporary double vision. Secondly, it may be due to the patient’s unconsciousness during surgery, the eyelids not being fully closed, and the prolonged exposure of the cornea to air, causing corneal oedema and other conditions that lead to double vision. This is usually relieved in 1 to 2 days with the use of appropriate nutritional medication.