A laser treatment apparatus providing a slit-lamp microscope with which an eye of a patient is observed, a box unit which is provided with an optical system to deliver a laser beam inside an observing visual field of the slit-lamp microscope, an attachable device which mounts the box unit on the slit-lamp...http://www.google.com/patents/US5954711?utm_source=gb-gplus-sharePatent US5954711 - Laser treatment apparatus
