Polysorb sutures are composed of Lactomer glycolide/lactide copolymer, which is a synthetic polyester composed of glycolide and lactide (derived from glycolic and lactic acids). They are prepared by coating the suture with a mixture of a caprolactone/glycolide copolymer and calcium stearoyl lactylate. Polysorb sutures are indicated for use in soft tissue approximation or ligation and ophthalmic surgery. These sutures are colored violet to increase visibility and are also available undyed.