The Intra Ocular Cutter.

Inappropriate infusion, either suprachoroidal or subretinal massive intraocular haemorrhage and inadvertent tearing or nibbling of the retina, are problems which may be induced iatrogenically during vitrectomy. Familiarity with the mechanical principles of each type of vitrectomy instrument will serve to minimise such hazards. This paper presents the special features of our newest generation intra Ocular Cutter (I.O.C.) in its two modes: (1) the fully integrated, electronically controlled, automatic unit with surgical stand and tray; (2) the Standby I.O.C., which is battery operated with simple hand suction. Particular stress is laid on the economy of ocular perfusion which may be achieved with informed use of these instruments.