Patent ID: 8066696
Filing Date: 2011-11-29
Classification: A61F

Abstract:
1. An ophthalmic laser treatment apparatus comprising: a laser source arranged to emit a visible laser beam having a wavelength range that is absorbed into a retina and into pigment cells of trabecular meshwork as a continuous wave; an irradiation optical system for directing the laser beam to a patient's eye so as to irradiate the patient's eye with the laser beam; pulsing means for making the continuous wave laser beam into a pulsed laser beam having a pulse width within a range of 0.1 msec to 5 msec by controlling a driving duration of the laser source or controlling opening and closing durations of a shutter disposed in the irradiation optical system; a selecting switch arranged to perform selection between a continuous wave mode of irradiating the continuous wave laser beam for an operative method including retinal photocoagulation and a pulse mode of irradiating the pulsed laser beam for an operative method including Selective Laser Trabeculoplasty (SLT); and irradiation duration setting means that sets an irradiation duration of 10 msec or more when the continuous wave mode is selected, and sets the pulse width within the range of 0.1 msec to 5 msec when the pulse mode is selected.