syndectomy

peritectomy

 [per″ĭ-tek´to-me] excision of a ring of conjunctiva around the cornea in treatment of pannus.

syndectomy

S26-926860 (sin-dek'to-me) [? + dein, to bind, + ektome, excision] The excision of a circular strip of the conjunctiva around the cornea to relieve pannus. Synonym: peritomy (1)