Abstract

THE use of the laser as a surgical tool for the treatment of lesions in tissues other than those of the eye has been reported1. Most of these areas treated, however, are those that are readily accessible, making it possible to focus the laser beam directly on the lesion. To apply the laser as an optical knife for surgery, techniques must be developed to direct the laser beam from the laser head to inaccessible areas. This need to change the direction of the laser beam is required not only in the medical field but also in the field of communication.

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