Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1987-09-18
1988-10-11
Bovernick, Rodney B.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351205, 351221, A61B 310
Patent
active
047766875
ABSTRACT:
An apparatus for detecting ophthalmic disease such as a cataract in the lens of a patient's eye includes means for focussing a laser beam and slit light alternatively or simultaneously at a selected spot in the lens of the eye. The slit light is used in a monitoring or adjustment mode to illuminate the selected spot and its adjacent portion on which the laser beam is to be focussed for ophthalmic disease detection, thereby making easier the identification of spots to be measured in the lens of the eye.
REFERENCES:
patent: 3703176 (1972-11-01), Vassiliadis
patent: 3783874 (1974-01-01), Koester
patent: 4208107 (1980-06-01), Oharek
patent: 4477159 (1984-10-01), Mizuno
patent: 4582405 (1986-04-01), Muller et al.
Kakizawa Koichiro
Nakanishi Takaji
Shinoda Shinichiro
Yasuda Nobuyuki
Bovernick Rodney B.
Kowa Company Ltd.
Rath Ralph R.
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