| 摘要 |
PURPOSE:To certainly observe the laser beam projecting state to an eye to be examined, by providing an observation optical system mounted so that the relative position with the eye to be examined is unchangeable and observing the laser beam projecting state to the eye to be examined through said observation optical system. CONSTITUTION:Laser beam projecting parts 3-10 are arranged in the state revolvable around an eye 1 to be examined so that the beam from a laser beam source 1 is condensed to the predetermined point of the eye 11 to be examined. In the beam receiving part arranged so as to be revolvable around the eye 1 to be examined, a photoelectric converter element 27 receiving the laser scattering beam from the eye 1 to be examined is provided. Further, the first observation systems 30-34 capable of observing a beam receiving state are arranged in the afore-mentioned beam receiving part and signal processing means 40, 25, 41 process the signal from the photoelectric converter element 27 to perform ophthalmic measurement. Furthermore, the laser beam projecting state to the eye 1 to be examined can be observed through the second observation optical system 52 mounted so that the relative position with the eye 1 to be examined is unchangeable. As a result, the laser beam projecting state to the eye to be examined can be certainly observed.
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