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Method of and apparatus for measuring the extent of clouding of the lens of a human eye
Method of and apparatus for measuring the extent of clouding of the lens of a human eye
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机译:用于测量人眼晶状体混浊程度的方法和设备
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摘要
The extent of clouding of the lens of a human eye is measured and quantified by directing a beam of electromagnetic radiation through the iris and against the clouded portion of the lens so that the clouded portion disperses and reflects the incident radiation. A selected part of reflected radiation which makes an angle of 10°-40° with the beam of incident radiation is monitored for intensity by a photoelectronic transducer whose signals are transmitted to an ammeter or to a microprocessor which latter transmits modified signals to a display unit and/or to a printer. The clouded portion of the lens can be observed through an optical system with an ocular whose axis coincides with a portion of the path of incident radiation.
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