Apparatus and method for non-contact, acoustic resonance determination of intraocular pressure
Patent
·
OSTI ID:6609230
The apparatus and method for measuring intraocular pressure changes in an eye under investigation by detection of vibrational resonances therein. An ultrasonic transducer operating at its resonant frequency is amplitude modulated and swept over a range of audio frequencies in which human eyes will resonate. The output therefrom is focused onto the eye under investigation, and the resonant vibrations of the eye observed using a fiber-optic reflection vibration sensor. Since the resonant frequency of the eye is dependent on the pressure therein, changes in intraocular pressure may readily be determined after a baseline pressure is established. 3 figures.
- DOE Contract Number:
- W-7405-ENG-36
- Assignee:
- University of California, Alameda, CA (United States)
- Patent Number(s):
- A; US 5375595
- Application Number:
- PPN: US 8-032942
- OSTI ID:
- 6609230
- Country of Publication:
- United States
- Language:
- English
Similar Records
Apparatus and method for non-contact, acoustic resonance determination of intraocular pressure
Apparatus and method for comparing corresponding acoustic resonances in liquids
Apparatus and method for comparing corresponding acoustic resonances in liquids
Patent
·
Fri Dec 31 23:00:00 EST 1993
·
OSTI ID:869670
Apparatus and method for comparing corresponding acoustic resonances in liquids
Patent
·
Mon Mar 22 23:00:00 EST 1999
·
OSTI ID:335440
Apparatus and method for comparing corresponding acoustic resonances in liquids
Patent
·
Thu Dec 31 23:00:00 EST 1998
·
OSTI ID:872213