Force feedback tonometer

Apparatus and method for measuring intraocular pressure (IOP). comprising a vibrator which transmits a vibrational energy into an eyeball through the eyelid and measures at least one of a force or phase response in the eyeball. The measurements are taken by placing the tonometer against the eyelid t...

Full description

Saved in:
Bibliographic Details
Main Authors JAMES DONALD E, CUZZANI OSCAR, BARKER ANDREW J
Format Patent
LanguageEnglish
Published 20.07.2005
Edition7
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEDICAL OR VETERINARY SCIENCE
PHYSICS
SURGERY
TESTING
Online AccessGet full text

Cover

More Information
Summary:Apparatus and method for measuring intraocular pressure (IOP). comprising a vibrator which transmits a vibrational energy into an eyeball through the eyelid and measures at least one of a force or phase response in the eyeball. The measurements are taken by placing the tonometer against the eyelid to induce vibration in the underlying eyeball. A force transducer coupled to the vibrator measures the response of the eyeball from which a vibrational impedance of the eye is determined. Intraocular pressure is then calculated based on the vibrational impedance. In a preferred use of the apparatus, the tonometer is calibrated against a known intraocular pressure measurement permitting the patient to take subsequent relative IOP measurements at home or otherwise outside a traditional medical setting without the need for anesthetic or fear of infection.
Bibliography:Application Number: CN20038006660