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Associations with Corneal Hysteresis in a Population Cohort [PDF]
Ophthalmology, 2019 Purpose: To describe the distribution of corneal hysteresis (CH) in a large cohort and explore its associated factors and possible clinical applications.
Andrew Lotery +2 more
exaly +7 more sources
Influence of corneal astigmatism, corneal curvature and meridional differences on corneal hysteresis and corneal resistance factor [PDF]
Australasian journal of optometry, The, 2011 This study investigated the influence of corneal astigmatism, corneal curvature and meridional differences on corneal hysteresis (CH) and the corneal resistance factor (CRF) in a group of normal Chinese persons.Ninety-five participants were recruited and data from the eye with higher corneal astigmatism were analysed. The anterior corneal curvature was
Andrew Lam
exaly +3 more sources
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Corneal hysteresis and glaucoma
International Ophthalmology, 2018To review and summarize the characteristics of corneal hysteresis (CH) and its relationship with glaucoma.A PubMed search was carried out using the terms "corneal hysteresis", "glaucoma", and "biomechanics". Up to March 2018, all studies published in English are included in this review.The value of CH reflects the ability of corneal tissue to absorb ...
Liang Liang
exaly +3 more sources
Evaluation of Sex Differences in Corneal Hysteresis
European Journal of Ophthalmology, 2015Purpose To study sex differences in corneal biomechanical parameters in Egypt as regards to corneal hysteresis (CH), corneal resistance factor (CRF), Goldmann-correlated intraocular pressure (IOP g ), and corneal-compensated intraocular pressure (
exaly +3 more sources
Factors affecting corneal hysteresis in normal eyes
Graefe's Archive for Clinical and Experimental Ophthalmology, 2008To evaluate factors affecting corneal hysteresis (CH) in normal eyes.We examined 86 normal eyes of 43 healthy volunteers (age, 39.1 +/- 14.5 years (mean +/- standard deviation); range, 19 to 68 years; gender, 26 men, 60 women; manifest refraction, -2.25 +/- 2.89 diopters (D); range, -9.13 to 3.88 D).
Kazutaka Kamiya +2 more
exaly +3 more sources
Corneal hysteresis in patients with corneal pathologies
Acta Ophthalmologica Scandinavica, 2007Abstract Purpose: To investigate the corneal hysteresis (CH), the corneal resistance factor (CRF) and the corneal compensated intraocular pressure (IOPcc) of subjects with normal corneas and with corneal pathologies with the Ocular Response Analyzer (ORA).
S HERDENER +3 more
openaire +1 more source
Dependence of corneal hysteresis on non-central corneal thickness in healthy subjects
Journal Français d'Ophtalmologie, 2023To evaluate the dependence of corneal hysteresis (CH) on non-central corneal thickness.Cross-sectional study of 1561 eyes of 1561 healthy volunteers with IOP less than 21mmHg, open angles on gonioscopy and no prior eye surgeries or local or systemic diseases.
M. Jiménez-Santos +6 more
openaire +2 more sources
Changes in Corneal Hysteresis After Clear Corneal Cataract Surgery
American Journal of Ophthalmology, 2007To assess the changes in corneal hysteresis (CH) as measured by the Ocular Response Analyzer (ORA; Reichert Ophthalmic Instruments, Buffalo, New York, USA) to describe the influence of clear corneal cataract surgery on corneal viscoelastic properties and intraocular pressure (IOP) measured by noncontact tonometry (NCT) and Goldmann applanation ...
Annette, Hager +5 more
openaire +2 more sources
2009
Corneal hysteresis (CH) is a measurement that reflects the viscoelastic properties of the cornea and its biomechanical integrity. Hysteresis is expressed in units of mmHg, just like intraocular pressure (IOP). Unlike IOP, CH shows no significant variation throughout the day [1]. The Ocular Response Analyzer (ORA) (Reichert Corp.
Lionel A. Marzette, Leon W. Herndon
openaire +1 more source
Corneal hysteresis (CH) is a measurement that reflects the viscoelastic properties of the cornea and its biomechanical integrity. Hysteresis is expressed in units of mmHg, just like intraocular pressure (IOP). Unlike IOP, CH shows no significant variation throughout the day [1]. The Ocular Response Analyzer (ORA) (Reichert Corp.
Lionel A. Marzette, Leon W. Herndon
openaire +1 more source
Corneal hysteresis following descemetorhexis with endokeratoplasty
Annals of Ophthalmology, 2007The corneal biomechanical properties following descemetorhexis with endokeratoplasty (DXEK) and in normal subjects were studied in 100 eyes (12 DXEK and 88 age-matched normal subjects). Corneal hysteresis measurements were significantly lower in DXEK vs normal subjects. DXEK has a direct effect on corneal hysteresis and corneal biomechanical properties
Thomas, John +3 more
exaly +3 more sources