August 1990
Volume 31, Issue 8
Free
Articles  |   August 1990
Anterior stromal puncture with the Nd:YAG laser.
Author Affiliations
  • H S Geggel
    Virginia Mason Clinic, Seattle, Washington 98111.
  • C E Maza
    Virginia Mason Clinic, Seattle, Washington 98111.
Investigative Ophthalmology & Visual Science August 1990, Vol.31, 1555-1559. doi:
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      H S Geggel, C E Maza; Anterior stromal puncture with the Nd:YAG laser.. Invest. Ophthalmol. Vis. Sci. 1990;31(8):1555-1559.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

A simple and consistent puncture of the anterior stroma was created with the neodymium:yttrium-aluminum-garnet (Nd:YAG) laser in a rabbit model. Varying energy levels were tested, and settings at 2.0 mJ produced well-formed anterior stromal breaks. The laser shock wave disrupted Descemet's membrane in only 1 of 50 animals. The wound healed normally in vivo over a 3-month period. Compared to needle puncture, the laser puncture created less stromal scarring. Initial human studies also showed that energy levels from 1.5-2.5 mJ were sufficient to create local breaks in Bowman's layer. Further human studies will be needed to determine if Nd:YAG laser puncture offers any advantages over current techniques for stromal puncture in the treatment of traumatic recurrent corneal erosions.

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