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Thomas I. Margolis, MD; Denise A. Farnath, MD; Maryanna Destro, MD; Carmen A. Puliafito, MD

Arch Ophthalmol. 1989;107(3):424-428.

Abstract
• We used a pulsed erbium-YAG laser emitting in the midinfrared region (2.94 µm) to cut experimental vitreous membranes in rabbits via an intraocular fiber-optic delivery system. Thirty-four membranes were cut at distances of 500 to 3600 µm from the retina. All 34 of the membranes treated were effectively cut. Sixteen cases had no evidence of retinal injury, including one in which the membrane was only 800 µm from the retina. Retinal injuries in the remaining cases consisted of small (<300 µm) retinal burns and hemorrhages. In 94% of the cases with retinal injury, the fiberoptic was within 2000 µm of the retina. We conclude that a pulsed erbium-YAG laser allows near tractionless cutting of vitreous membranes and may have potential for clinical use if further studies show it to be efficacious and safe near the retina.

Author Affiliations
From the Laser Research Laboratory, Massachusetts Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School, Boston.

Footnotes
Accepted for publication Aug 26, 1988.

Presented in part at the 16th meeting of the Club Jules Gonin, Bruges, Belgium, Sept 4-8, 1988.

Reprint requests to Laser Research Laboratory, Massachusetts Eye and Ear Infirmary, 243 Charles St, Boston, MA 02114 (Dr Puliafito).

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