Nidek Co., Ltd.

Masato Kawai

Hitoshi Abe

Seiki Tomita

An ophthalmic laser treatment apparatus for generating plasma by focusing a treatment laser beam to treat a treatment target portion of a patient's eye with the plasma includes: an irradiation optical system configured to irradiate the treatment laser beam to the patient's eye; a position adjusting unit configured to adjust a focusing position of the treatment laser beam in an optical axis direction with respect to a predetermined focusing reference position; an energy adjusting unit configured to adjust irradiation energy of the treatment laser beam; a storage unit configured to store evaluation information to evaluate a permissible combination of the focusing position and the irradiation energy with respect to the focusing position; and an evaluation unit configured to evaluate a combination of the focusing position adjusted by the position adjusting unit and the irradiation energy adjusted by the energy adjusting unit based on the evaluation information.

Ophthalmic laser treatment apparatus

An ophthalmic laser treatment apparatus includes: an aiming optical system configured to irradiate an aiming beam to a patient's eye; a laser irradiation optical system configured to irradiate a laser beam for treatment to the patient's eye; a shift unit configured to make a shift of a focus shift position corresponding to a focus position of the laser beam to a posterior or anterior position with respect to a focus position of the aiming beam; a selection receiving unit configured to receive an instruction to select any one of a plurality of treatment modes; and a control unit configured to control operations of the ophthalmic laser treatment apparatus. The control unit sets a value of a parameter related to irradiation of the laser beam, the parameter including a parameter related to the shift of the focus shift position, according to the treatment mode selected with the selection receiving unit.

A laser treatment apparatus for irradiating a laser beam to a patient's eye, comprises: a plurality of laser sources which emit treatment laser beams having different wavelengths, each laser source being held in a main body to be mountable and demountable and connected to a power source through a connector; a light delivery optical system having a mirror for making the laser beams from the laser sources coaxial with each other to deliver each laser beam to the patient's eye; an input unit for inputting mounting information of each laser source; a control unit which checks a predetermined operation of each laser source by a sensor at the time of activation to determine whether an abnormality is present or not in each laser source, and displays an indication that the abnormality is present on a display, wherein the control unit will not perform the operation check whether the abnormality is present or not in the laser source or laser sources unmounted in the main body, based on the mounting information input by the input unit.

Laser treatment apparatus

An ophthalmic laser treatment apparatus comprises: a main unit in which an illumination and observation optical system for illuminating a patient's eye and allowing observation of the patient's eye under illumination, and an irradiation optical system for irradiating a treatment laser beam and an aiming beam to the patient's eye; a joystick including a grip to be grasped by an operator, the joystick being configured to move the main unit with respect to the patient's eye; and a switch placed in an opening formed in a side of the joystick, the switch being configured to input a plurality of switch signals.

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Okazaki, Japan

Masato Kawai