|Laser application in canine corneal diseases
The use of different lasers has become very popular in human medicine of the last decade. Often the owners ask for this technique if neoplasias especially in the face or on the eyelids have to be removed. This article compares three different lasers which can be used on the canine cornea and gives recommendations for the best indications of each. Very informative!|
|The clinical use of the carbon dioxide (CO2) laser and diode laser is increasing in veterinary medicine.
New applications for their use are being explored, including ophthalmic applications.
The use of lasers for small-animal corneal disease is fairly limited due to several factors.
The ideal laser for corneal use is the excimer laser due to its extremely precise photoablative capability. However, the excimer laser is unlikely ever to become practical for veterinary use.
The frequency of corneal disease in small animals in which tissue ablation is indicated is relatively low. And for most of these diseases, routine surgical techniques work as well or better than laser ablation.
The CO2 laser can be used on corneal tissue, but must be used very cautiously so as not to ablate too deeply, creating serious scarring or perforation. There are also concerns regarding its effect on corneal nerves, stromal collagen, and corneal endothelium.
The CO2 laser can be very effective in ablating limbal tumors with corneal extension.
The use of the laser is less invasive, technically less difficult, and faster because of excellent hemostasis.
The diode laser, due to its high melanin absorption, can be used effectively to ablate epibulbar melanomas with corneal stromal invasion.
Source: Gilmour MA. (2003): Laser applications for corneal disease. In: Clin Tech Small Anim Pract. 2003 Aug;18(3):199-202.
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