Conjunctival pain at termination of cataract surgery.

An explanation is proposed for the conjunctival pain at the conclusion of cataract surgery. Pain associated with injection of antibiotics under the conjunctiva is sometimes observed at the end of cataract surgery performed under retrobulbar block. Partial block of the sensory nerves of the eye has been proposed as a reason for this. Failure to block orbital-ciliary nerves, branches of the maxillary branch of the fifth cranial nerve is put forward as an additional explanation for the pain.