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用激光散斑电脑验光仪对各种不同屈光度的人眼进行验光时,患者将会看到散斑不同的运动状态,这时插入不同镜片进行矫正,直到人眼观察到散斑呈“沸腾”状态为止。 但该仪器的主要缺点是:(1)由于事先不知人眼屈光不正的程度,插片要一直持
Laser speckle computer refractor for different diopters of the human eye optometry, the patient will see different movement of speckle, then insert different lenses to be corrected until the speckle observed by the human eye was “boiling” State so far. However, the main drawbacks of the instrument are: (1) Due to the fact that the refractive error of the human eye is not known in advance,