Nidek Co., Ltd.

Hiroki Yokosuka

Tokio Ueno

Naho Murakami

Koichi Ito

Seiji Taki

An ophthalmic laser treatment apparatus includes a light interference optical unit, an irradiation unit, a luminance transition information detecting unit, a focused state detecting unit, and a guide unit. The light interference optical unit is configured to acquire a depth profile of a patient's eye tissue. The luminance transition information detecting unit is configured to control a first focus position adjusting unit to shift a focus position of a measurement light to acquire a depth profile in each focus position. The focused state detecting unit is configured to detect a focused state in the patient's eye tissue based on luminance transition information acquired by the luminance transition information detecting unit. The guide unit is configured to guide a focus position of a laser beam to be adjusted based on a result of detection of the focused state detecting unit.

Ophthalmic laser treatment apparatus

An ophthalmic laser treatment apparatus comprises: a main unit; a laser source; a hand-held cabinet; a laser delivery optical system for irradiating the laser beam in a predetermined irradiation pattern onto tissues of the patient's eye, the laser delivery optical system including: a fiber unit connecting the hand-held cabinet to the main unit; a scanner for deflecting an optical axis of the laser beam; and an image forming optical system for forming an image of the laser beam in the form of a spot on the tissues of the patient's eye; an irradiation pattern setting unit for setting an irradiation pattern of the treatment laser beam; a control unit for controlling drive of the scanner; and a beam combiner provided in the hand-held cabinet to make an observation optical path and an optical path of the laser delivery optical system coincident with each other.

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Aichi, Japan

Hiroki Yokosuka