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A clinical evaluation of a one‐piece drainage system in the treatment of canine glaucoma
Author(s) -
Bedford P. G. C.
Publication year - 1989
Publication title -
journal of small animal practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 67
eISSN - 1748-5827
pISSN - 0022-4510
DOI - 10.1111/j.1748-5827.1989.tb01502.x
Subject(s) - medicine , implant , glaucoma , surgery , intraocular pressure , medical therapy , aqueous humor , drainage , ophthalmology , glaucoma surgery , ecology , biology
A one‐piece drainage implant consisting of an anterior chamber tube and an attached large surface area strap has been used to treat glaucoma in 15 dogs (21 eyes). The results obtained over a minimum period of nine months suggest that the technique offers a greater chance of long term control than other surgical therapies currently practised. In all patients in this series medical therapy was either inappropriate or had proved ineffective, and surgery to bypass the iridocorneal angle was considered essential if intraocular pressure control was to be achieved. The drainage implant allowed aqueous to be diverted from the anterior chamber and absorbed from a large sub‐conjunctival scar sac which developed around the strap. Four weeks after surgery 20 eyes were normotensive and by nine months after surgery only three additional eyes had become irreversibly hypertensive. No further failures have been recorded, and throughout there has been no apparent untoward reaction to the presence of the implant. Additional medical hypotensive therapy is being used in approximately 50 per cent of the controlled eyes.