19 January 1996 Tissue welding for corneal wound suture with a CW 1.9-um diode laser: an in-vivo preliminary study
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Proceedings Volume 2623, Medical Applications of Lasers III; (1996); doi: 10.1117/12.230351
Event: BiOS Europe '95, 1995, Barcelona, Spain
Abstract
This study aimed to evaluate the interest of a 1.9 micrometer diode laser for corneal wound suture. Six adult albino rabbits were anesthetized. A 7 mm corneal incision was practiced on the right eye. For 3 animals (laser plus stitch) the incision was surgically sutured with 2 stitches of a nylon monofilament and laser impacts were performed between the stitches. For 3 animals (laser only) juxtaposed lasers impacts were realized to suture the wound. After the procedure the animals were examined daily for signs of inflammation, infection and for healing of the corneal wound. Material was obtained for histological examination 1 month after the procedure. Approximation of the edges of the would was successfully obtained in the (laser plus stitch) group. In the (laser only) group this approximation remained troublesome. After the procedure, one cornea of the (laser only) group disclosed a little leakage during 2 days. Histological examination assessed the welding of the corneal wound in the two groups provided structural modifications and some inflammatory signs. Corneal welding using a 1.9 micrometer diode laser is possible either with laser and stitch or with laser only. The approximation of the edges of the wound with additional stitches is an evident drawback. The use of additional stitches should be avoided to keep the theoretical advantages of corneal would suture using laser welding.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Thomas Desmettre, Serge R. Mordon, Valerie A. Mitchell, "Tissue welding for corneal wound suture with a CW 1.9-um diode laser: an in-vivo preliminary study", Proc. SPIE 2623, Medical Applications of Lasers III, (19 January 1996); doi: 10.1117/12.230351; https://doi.org/10.1117/12.230351
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KEYWORDS
Semiconductor lasers

Laser welding

Cornea

Laser tissue interaction

Collagen

Tissues

Monochromatic aberrations

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