J
John R. Tyrer
Researcher at Loughborough University
Publications - 166
Citations - 2082
John R. Tyrer is an academic researcher from Loughborough University. The author has contributed to research in topics: Interferometry & Electronic speckle pattern interferometry. The author has an hindex of 22, co-authored 162 publications receiving 1942 citations. Previous affiliations of John R. Tyrer include Commonwealth Scientific and Industrial Research Organisation & University of Leicester.
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Age-related differences in the elasticity of the human cornea.
TL;DR: The stiffness of the human cornea increases by a factor of approximately two between the ages of 20 and 100 years, relevant to the algorithms used to predict the response to incisional and ablative refractive surgery and will also affect the formulas used to calculate intraocular pressure by applanation.
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Interferometric technique to measure biomechanical changes in the cornea induced by refractive surgery.
TL;DR: Results show that in the formation of the microkeratome flap, collagen fibers are severed and minimal biomechanical loading is distributed through the flap, which shows that corneal biomechanicals integrity is compromised after microker atome incisions.
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An electronic speckle pattern interferometer for complete in-plane displacement measurement
Andrew J. Moore,John R. Tyrer +1 more
TL;DR: In this paper, a new interferometer was devised to measure two in-plane interferograms at the same time, and the determination of the method of operation and experimental verification of the technique were given.
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Effects of Variation in Depth and Side Cut Angulations in LASIK and Thin-flap LASIK Using a Femtosecond Laser: A Biomechanical Study
TL;DR: In this article, a femtosecond laser and radial shearing speckle pattern interferometry (RSSPI) were used to study the biomechanical effects of varying LASIK flap depth and side cut angulations.
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Two-dimensional strain measurement with ESPI
Andrew J. Moore,John R. Tyrer +1 more
TL;DR: In this article, an electronic speckle pattern interferometer was used to measure displacement and strain simultaneously, and the results showed that the accuracy was ± 0·03 μm and ± 6 μm, respectively.