Ophthalmic laser treatment apparatus

A method executed by a control unit of an ophthalmic laser treatment apparatus that irradiates therapeutic laser light to tissue of a patient's eye each time an execution instruction for irradiating the therapeutic laser light is input, the method comprising:

• irradiating, with a laser irradiation optical system, the therapeutic laser light to the patient's eye;
• causing, with an observation optical system, an operator to observe an observation image of the patient's eye through an eyepiece lens;
• and
• displaying, with an internal display unit provided in the observation optical system, an image to the operator through the eyepiece lens, wherein
• a scheduled irradiation region is defined as a region including a plurality of irradiation spots to which the therapeutic laser light is scheduled to be irradiated while using a contact lens having a plurality of reflective surfaces that reflect the therapeutic laser light in a direction intersecting with an optical axis,
• the scheduled irradiation region is divided into a plurality of irradiation sections, and
• the method further comprises, with the control unit:
• acquiring an irradiation plan that defines, in accordance with an arrangement of the plurality of reflective surfaces, an irradiation order of the therapeutic laser light for the plurality of irradiation sections;
• and
• controlling, in accordance with progress of the irradiation plan, the internal display unit to display an aiming guide for assisting the operator in adjusting an aiming position of the therapeutic laser light to an appropriate position.

A non-transitory, computer readable, storage medium storing computer program code executed by a control unit of an ophthalmic laser treatment apparatus that irradiates therapeutic laser light to tissue of a patient's eye each time an execution instruction for irradiating the therapeutic laser light is input, the computer program code, when executed by the control unit, causing the ophthalmic laser treatment apparatus to perform:

• irradiating, with a laser irradiation optical system, the therapeutic laser light to the patient's eye;
• causing, with an observation optical system, an operator to observe an observation image of the patient's eye through an eyepiece lens;
• and
• displaying, with an internal display unit provided in the observation optical system, an image to the operator through the eyepiece lens, wherein
• a scheduled irradiation region is defined as a region including a plurality of irradiation spots to which the therapeutic laser light is scheduled to be irradiated while using a contact lens having a plurality of reflective surfaces that reflect the therapeutic laser light in a direction intersecting with an optical axis,
• the scheduled irradiation region is divided into a plurality of irradiation sections, and
• the computer program code further causes the ophthalmic laser treatment apparatus to perform:
• acquiring, with the control unit, an irradiation plan that defines, in accordance with an arrangement of the plurality of reflective surfaces, an irradiation order of the therapeutic laser light for the plurality of irradiation sections;
• and
• controlling, with the control unit in accordance with progress of the irradiation plan, the internal display unit to display an aiming guide for assisting the operator in adjusting an aiming position of the therapeutic laser light to an appropriate position.