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Corneal biomechanics and IOP measurements: the implications for glaucoma management
Author(s) -
KOTECHA A
Publication year - 2008
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2008.5253.x
Subject(s) - biomechanics , intraocular pressure , cornea , glaucoma , ophthalmology , medicine , optometry , anatomy
Abstract Whilst the effects of variations in central corneal thickness and corneal curvature on intraocular pressure measurement are well known, it has only been recently possible to measure corneal biomechanical properties in vivo. Reichert has produced an instrument, the Ocular Response Analyzer (ORA; Reichert Corporation; Depew, USA), that measures the corneal response to indentation by a rapid air pulse. The instrument generates a measure of corneal viscoelasticity, corneal hysteresis, which is a direct measure of the cornea’s biomechanical properties. This parameter may more completely describe the contribution of corneal resistance to IOP measurements than CCT alone. This talk will consider the effects of corneal parameters, including biomechanics, on intraocular pressure (IOP) measurement. The potential role of corneal biomechanics as an indicator of globe structural integrity will be discussed.