Abstract: A medical laser apparatus comprises: a solid laser oscillating source which emits a beam of a wavelength ?1 in an infrared region of approx. 1040 nm to approx. 1080 nm; a first fiber-based Raman shifter including a first Raman fiber which generates, when receives the ?1-beam from the laser oscillating source, a first-order Stokes beam of a wavelength ?2 different from the wavelength ?1 by stimulated Raman scattering, the first Raman fiber being formed with a pair of fiber Bragg gratings which forms a resonator for the ?2-beam; a first nonlinear crystal which wavelength-converts the ?2-beam outputted from the first Raman wavelength shifter to a second harmonic beam of a wavelength ?2? in an orange region of approx. 580 nm to approx. 600 nm; and a light guiding optical system which guides the ?2?-beam to a treatment part.

Abstract: An ophthalmic laser surgical apparatus includes a laser irradiation optical system which irradiates a laser beam which causes ablation on tissue of an eye; a sound collecting unit which receives a shock sound which is generated during the ablation of the eye tissue; and a monitor unit which is connected to the sound collecting unit and detects a degree of dryness of the eye tissue during the ablation based on a sound pressure level of a sound signal from the sound collecting unit.

Abstract: An eyeglass lens processing apparatus for processing a periphery of an eyeglass lens, includes: a lens rotating unit having rotating shafts for holding and rotating the lens; an abrasive wheel; an abrasive wheel state detecting unit for detecting a lowered processing performance of the abrasive wheel; and a notifying unit for notifying that dressing for the abrasive wheel is required based on a result of detection by the abrasive wheel state detecting unit.

Abstract: An ophthalmic surgery apparatus comprising a system for observing an anterior portion of an eye, and an optical system for irradiating a laser beam for treatment to the eye, the apparatus is a corneal surgery apparatus irradiating the laser beam to a cornea and ablating a surface thereof, the apparatus comprising a moving device for moving the optical system relatively against the eye, an illuminating device for illuminating a large area of the anterior portion of the eye, a photoelectric transducing device having a two-dimensional light sensing plane, for sensing distribution of light volume of the anterior portion of the eye, a pupil position sensing device for sensing the position of a pupil, a control device for controlling the moving device based on sensed results, a tracking signal generating device for generating a signal to track movement of the eye, whereby the moving device is controlled by the control device so as to track movement of the eye by inputting a signal generated by the tracking signal g