Claims
- 1. An apparatus for detecting ophthalmic diseases in the camera oculi of a patient's eye which contains protein due to inflammation, comprising:
- a laser source for producing a laser beam;
- means for focussing the laser beam at a selected spot in the camera oculi of the patient's eye such that the focussed laser beam is scattered by the protein in the camera oculi during a predetermined measurement interval and including means for scanning the laser beam to displace the selected spot within the camera oculi during said measurement interval;
- photoelectric converting means for receiving the light scattered from the camera oculia and operative to convert the scattered light into corresponding electric pulses when the intensity of the received scattered light is greater than a predetermined value;
- counting means for counting the number of electric pulses produced by the photoelectric converting means to thereby measure the intensity of the scattered light; and
- means for calculating the protein concentration due to the inflammation in the camera oculi of the eye according to the measured intensity of the scattered light.
- 2. An apparatus according to claim 1; wherein the photoelectric converting means comprises a photomultiplier.
- 3. An apparatus for determining the concentration of protein particles in a patient's eye comprising: means for projecting a laser beam at a selected spot in a patient's eye; deflecting means for deflecting the laser beam during a measurement interval to scan the laser beam across an area in the patient's eye which includes the selected spot so that laser beam light is scattered by protein particles in the patient's eye; photoelectric converting means receptive of the scattered light for photoelectrically converting scattered light having an intensity greater than a predetermined value into electrical pulses the number of which corresponds to the intensity of the scattered light; counting means for counting the number of electrical pulses and producing a count value indicative of the intensity of the scattered light; and means receptive of the count value for determining therefrom the concentration of protein particles in the patient's eye.
- 4. An apparatus according to claim 3 wherein the photoelectric converting means comprises a photomultiplier.
- 5. An apparatus according to claim 3, wherein the means for determining the concentration of protein particles includes means for subtracting from the count value a value corresponding to light scattererd by particles other than protein particles in the patient's eye.
- 6. An apparatus according to claim 3, wherein the deflecting means includes means for periodically scanning the laser beam in at least one direction during the measurement interval.
Priority Claims (1)
Number |
Date |
Country |
Kind |
60-259772 |
Nov 1985 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 926,650, now abandoned, filed Nov. 3, 1986.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4702576 |
Magnante |
Oct 1987 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
926650 |
Nov 1986 |
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