Laser sclerectomy and 5-FU controlled drug release biodegradable implant for glaucoma therapy

Franck Villain, Jean Marie Parel, Katalin Kiss, Richard K. Parish, François Kühne, Yoshiko Takesue, Patrick Hostyn

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


Laser sclerectomy, a simple filtering procedure to alleviate high intraocular pressure in glaucoma patients, was thought to offer longer lasting effects than the standard trabeculectomy procedure, thereby improving the patient's outcome. Recent clinical trials have shown that this was not the case and that pharmacologic wound healing modulation is also required with this new procedure. 5-Fluorouracil (5-FU) is useful as an adjunct treatment for glaucoma filtering surgery. However, efficacy depends upon maintaining sustained drug levels, currently achieved by repeated daily injection of the drug for several weeks. To overcome this limitation, we designed a biodegradable implant for the sustained release of 5-FU. After laser sclerectomy, the implant is inserted through the same 1 mm wide conjunctival snip incision then positioned below the open channel. Implantation takes less than a minute. The implant releases the drug over 15 days and totally biodegrades in less than 100 days. The combined laser surgery and implantation procedure shows great potential for the treatment of glaucoma.

Original languageEnglish (US)
Pages (from-to)240-244
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Jun 24 1993
EventOphthalmic Technologies III 1993 - Los Angeles, United States
Duration: Jan 17 1993Jan 22 1993

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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