J Korean Ophthalmol Soc.  1991 Jan;32(1):22-28.

Fibrous Capsule Surrounding Silicone Encircling Band and Gore Tex(TM) Surgical Membrane: A Histological Study

• Kim DM
• Hyung SM

Abstract

As the anterior chamber tube shunt to an encircling band(ACTSEB) is a complicated procedure, extended polytetafluoroethylene(e-PTFE)-silicone tube implant is being attempated as a new glaucoma drainage implant in Korea. Anterior chamber tube shunt to a two-fold e-PTFE surgical membrane(ACTSSM) has better intraocular pressure(IOP) control than ACTSEB and kept the postoperative anterior chamber depth deep. ACTSEB and ACTSSM procedures were done in normal, colored rabbit eyes in order to compare the tissue response to each shunt. The rabbits were sacrificed 3 and 6 weeks later and the eyes were prepared for light microscopy. In general, foreign body responses were similar. Fibrous capsules lining the e-PTFE were thicker, less dense fibroblast, and less collagen than that lining the silicone encircling band. These findings seem to be related to the difference of the IOP lowering effect between ACTSEB and ACTSSM.

Keyword

fibrous capsule; extended polytetrafluoroethylene; silicone band; silicone tube

MeSH Terms

Anterior Chamber
Capsules
Collagen
Fibroblasts
Foreign Bodies
Glaucoma Drainage Implants
Korea
Membranes*
Microscopy
Rabbits
Silicones*
Capsules
Collagen
Silicones