Principles of contact lens tonometry.

Abstract:

:We constructed a contact lens with an integrated pressure-sensing device. It is housed in a container with three force-sensing elements, each 120 degrees apart, enabling measurement of the appositional force, i.e., the force with which the instrument is held against the eye. In part 1 of the study, the lens' precision was tested against a manometric transducer in five eye bank eyes. The second part examined pressure as a factor dependent on the appositional force, and the third part of the study investigated the correct procedure for measuring baseline eye pressure, p0. The instrument described here allows investigation of three examination parameters: (a) the measurement of p0, the pressure independent of the appositional force; (b) the continuous measurement of the intraocular pressure (IOP); (c) the measurement of the IOP dependent on the appositional force, including artificial IOP elevation.

journal_name

Int Ophthalmol

authors

Dekker PW,Robert YC,Kanngiesser H,Pirani P,Entenmann B

doi

10.1023/a:1006292102204

subject

Has Abstract

pub_date

1998-01-01 00:00:00

pages

105-11

issue

2

eissn

0165-5701

issn

1573-2630

journal_volume

22

pub_type

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