Imaging system for surgical lasers

摘要

An ocular imaging system for use with a surgical laser device comprises a light source radiating a beam which is coaxially aligned with the surgical laser beam. An aperture is place in the path of the beams to limit the quantity of light that can pass along the path. A steering mechanism is provided to move the coaxially aligned beams across the surface of the eye, and a confocal optical arrangement is provided to establish one of the beams' focal points at the aperture and the other as desired by the operator. Means are provided to detect the intensity of light reflected through the aperture and signal when this intensity surpasses a threshold value that is indicative of a specular reflection from the interface between tissues having different indices of refraction.