Internal sclerostomy with the Er: YAG laser using a gradient-index (GRIN) endoscope

Atsushi Mizota, Michihiko Takasoh, Katsuhiko Kobayashi, Jean-Marie A Parel, Fabrice Manns, Pascal Rol

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

BACKGROUND AND OBJECTIVE: To show that sclerostomy, a glaucoma filtering surgery, can be performed using an Er:YAG laser. Scarring at the filtering site, a recurrent problem, may be reduced through proper positioning of the sclerostomy by using an intraocular endoscope. MATERIALS AND METHODS: Ab interno fullthickness sclerostomies were performed on eye bank eyes with an Er:YAG laser through a custom made optical delivery system. The intraocular laser probe consisted of a low OH silica fiber inserted in a metallic tapered sheathing. A rigid intraocular endoscope based on gradient-index lenses allowed visualization of the filtration site. RESULTS: A clear view of the anterior chamber angle was obtained through the endoscope, allowing for precise location of the sclerostomy. Full-thickness sclerostomies could then be performed at the desired location. Histologic sections showed thermal necrosis less than 50 μm thick in tissue adjacent to the sclerostomy. CONCLUSIONS: A sclerostomy performed with a combined procedure using an Er:YAG laser and intraocular endoscopy increases the speed of the procedure. The use of a high-resolution intraocular endoscope may increase the success rate of ab interno laser glaucoma surgeries.

Original languageEnglish
Pages (from-to)214-220
Number of pages7
JournalOphthalmic Surgery and Lasers
Volume33
Issue number3
StatePublished - Jan 1 2002
Externally publishedYes

Fingerprint

Sclerostomy
Endoscopes
Solid-State Lasers
Glaucoma
Eye Banks
Filtering Surgery
Optical Devices
Laser Therapy
Anterior Chamber
Silicon Dioxide
Lenses
Endoscopy
Cicatrix
Lasers
Necrosis
Hot Temperature

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Internal sclerostomy with the Er : YAG laser using a gradient-index (GRIN) endoscope. / Mizota, Atsushi; Takasoh, Michihiko; Kobayashi, Katsuhiko; Parel, Jean-Marie A; Manns, Fabrice; Rol, Pascal.

In: Ophthalmic Surgery and Lasers, Vol. 33, No. 3, 01.01.2002, p. 214-220.

Research output: Contribution to journalArticle

Mizota, Atsushi ; Takasoh, Michihiko ; Kobayashi, Katsuhiko ; Parel, Jean-Marie A ; Manns, Fabrice ; Rol, Pascal. / Internal sclerostomy with the Er : YAG laser using a gradient-index (GRIN) endoscope. In: Ophthalmic Surgery and Lasers. 2002 ; Vol. 33, No. 3. pp. 214-220.
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