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Corneal Thickness at High Altitude
Cornea, 2007The eye, like other organs, is affected by the hypobaric hypoxia of high altitude. Corneal swelling is known to occur under hypoxic conditions at sea level, for instance when wearing contact lenses. The aim of this study was to measure central corneal thickness (CCT) in lowlanders ascending to altitude.The Apex 2 medical research expedition provided ...
Daniel S, Morris +5 more
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Corneal thickness measured by interferometry
Journal of the Optical Society of America, 1975An optical method for measuring the thickness of transparent structures has been developed, and has been used to measure, in vivo, the thickness of the human cornea. The thickness is measured by placing the anterior surface of the cornea at the focus of a beam of coherent laser light and then measuring the spacing between the interference fringes ...
D G, Green, B R, Frueh, J M, Shapiro
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Impact of Corneal Toricity on the Distribution of Corneal Epithelial Thickness
Journal of Refractive Surgery, 2023Purpose: To investigate the impact of corneal toricity on the distribution characteristics of corneal epithelial thickness (CET). Methods: A total of 330 eyes in 330 healthy participants were included in this study.
Jiafan, Zhang +5 more
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CENTRAL THICKNESS IN CORNEAL DISORDERS
Acta Ophthalmologica, 1978In the single individual the central corneal thickness (CCT) shows only small variations. Therefore CCT has been studied in a number of corneal diseases in order to investigate if this dimension might contribute to the diagnosis or to the understanding of the pathogenesis.Normal CCT was found in hereditary dystrophies with the exception of the macular ...
N, Ehlers, T, Bramsen
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ON THE OPTICAL MEASUREMENT OF CORNEAL THICKNESS
Acta Ophthalmologica, 1971The optical measurement of corneal thickness based on oblique viewing of the optical section of the cornea is complicated by the finite width of the incident slit beam. In this report the theoretical and practical aspects of the effect of the slit width on the thickness reading are analysed.
N, Ehlers, F K, Hansen
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Effect of Brimonidine on Corneal Thickness
Journal of Ocular Pharmacology and Therapeutics, 2011Brimonidine, an alpha-2 adrenoceptor agonist, is an effective and safe medication that is widely used in glaucoma treatment. Although it is known that it is quickly taken up by the cornea following topical administration and that the cornea has alpha-2 adrenoceptors, there are only few studies available on the impact brimonidine has on the cornea ...
Matthias, Grueb +3 more
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Central corneal thickness in glaucoma
Current Opinion in Ophthalmology, 2017The purpose of this review is to summarize the role of central corneal thickness (CCT) in the clinical management of a glaucoma patient.The prognostic value of CCT is well recognized in patients with ocular hypertension. However, its predictive value in other glaucoma suspects and patients with established glaucoma is less certain.
Chelvin C A, Sng +2 more
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Effect of phacoemulsification on corneal thickness
American Journal of Ophthalmology, 2003To determine the immediate effect on corneal thickness of cataract extraction using phacoemulsification.Prospective consecutive nonrandomized humans undergoing standard small-incision phacoemulsification and intraocular lens insertion.Corneal thickness was measured immediately preoperative and postoperatively in 58 consecutive patients undergoing ...
Jose Manuel, Vargas +5 more
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Corneal thickness: measurement and implications
Experimental Eye Research, 2004The thickness of the cornea was reported in more than 100-year-old textbooks on physiological optics (Helmholtz, Gullstrand). Physiological interest was revived in the 1950s by David Maurice, and over the next 50 years, this 'simple' biological parameter has been studied extensively.
Niels Ehlers, Jesper Hjortdal
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Intrasubject Corneal Thickness Asymmetry
Journal of Refractive Surgery, 2008Purpose To establish the normal distribution for intrasubject (right eye/left eye) central corneal pachymetry in a refractive surgery population. Methods A retrospective analysis was performed on 1448 eyes of 724 consecutive patients evaluated for refractive surgery.
Stephen S, Khachikian +2 more
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