Results 71 to 80 of about 365,280 (180)

Birefringent properties of the human cornea in vivo : towards a new model of corneal structure [PDF]

The fundamental corneal properties of mechanical rigidity, maintenance of curvature and optical transparency result from the specific organisation of collagen fibrils in the corneal stroma. The exact arrangement of stromal collagen is currently unknown
Misson, Gary P.
core  

The effects of spherical and aspheric rigid gas permeable contact lens: Corneal curvature and topography changes

, 1995
The purpose of this study was to evaluate the performance of a rigid, posterior surface aspheric contact lens compared with a spherical contact lens. A total of 13 subjects were fitted with an aspheric lens in one eye and a spherical lens in the other ...
Carney, Leo G., Shwallie, Joseph D., Barr, Joseph T.   +2 more
core   +1 more source

Historical Development of Zoo Tapir (Tapirus ssp.) Survivorship

Zoo Biology, EarlyView.
The survivorship of tapirs in zoos has improved significantly over historical time. ABSTRACT Tapirs (Tapirus spp.) are large, long‐lived herbivores native to Central and South America and Southeast Asia. All species are currently classified as Vulnerable (T. terrestris) or Endangered (other species) in the IUCN SSC Red List.
Johanna E. Wittenberg, Laurie Bingaman Lackey, Jörg Beckmann, Marco Roller, Dennis W. H. Müller, Jan Pluháček, Marcus Clauss, João Pedro Meireles   +7 more
wiley   +1 more source

Changes in corneal curvature after wearing the orthokeratology lens [PDF]

, 2013
IntroductionThe orthokeratology lens (OK lens) is designed to reshape the cornea and correct refraction error. Owing to the convenience of ceasing the use of glasses during the day, the use of the OK lens is increasing in myopic children.
Chou, Chien-Chih, Huang, Yu-Chuen, Chen, Wen-Lu, Lin, Hui-Ju, Lin, Jane-Ming, Tsai, Yi-Yu   +5 more
core   +1 more source

Decellularised Corneal Stromal Lamina With or Without Autologous Adipose‐Derived Adult Stem Cells for Advanced Keratoconus: 1‐Year Results of a Phase I/IIa Clinical Trial

Clinical &Experimental Ophthalmology, EarlyView.
ABSTRACT Background To report the 1‐year clinical outcomes of decellularised human corneal stromal lamina implantation, with or without autologous adipose‐derived adult stem cells (ADASCs), for advanced keratoconus in a European cohort. Methods In this prospective, randomised Phase I/IIa trial, 10 eyes of 10 patients were allocated to decellularised ...
Hao Zhang, Jorge L. Alió del Barrio, Alejandra E. Rodriguez, Rafael I. Barraquer, Francisco Arnalich‐Montiel, David Mingo‐Botín, María Eugenia Fernández Santos, Jorge L. Alió   +7 more
wiley   +1 more source

Impact of congenital lower eyelid entropion correction surgery on pediatric astigmatism

Frontiers in Medicine
ObjectiveTo evaluate the effect of congenital lower eyelid entropion surgery on refractive status and corneal astigmatism in children, and to explore surgical timing and visual rehabilitation.MethodsA total of 43 pediatric patients (43 eyes) aged 3–12 ...
Jing Wu, Yaxin Zhao, Nan Wei
doaj   +1 more source

Reduced order modelling of air‐puff test for corneal material characterisation

Journal of Microscopy, EarlyView.
Abstract Models of the fluid–structure interaction (FSI) model for the air‐puff test were analysed. Using Abaqus, the air‐puff test is applied to eyes with varying biomechanical parameters, such as material properties, corneal thickness, and radius.
Osama M. Maklad, Muting Hao
wiley   +1 more source

Anchored or Adrift? A Note on Measuring Inflation Expectations Anchoring

Oxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT We develop a behavioural model of inflation which contains an indicator that quantifies the expectations unanchoring risk over the business cycle. We estimate this model using US and Canadian inflation and output gap data. We find that during the post‐pandemic inflation surge, the macroeconomic data are compatible with non mean‐reverting ...
Olena Kostyshyna, Isabelle Salle, Hung Truong   +2 more
wiley   +1 more source

Which feature influences on-eye power change of soft toric contact lenses: Design or corneal shape?

PLoS ONE, 2020
PurposeThis study investigates how both the peripheral zone design and corneal shape affect the behaviour of soft contact lenses on-eye.MethodsIn this study, soft contact lenses of varying nominal cylindrical powers and peripheral zone designs-a single ...
Tamsin Doll, Joshua Moore, Ahmad H Shihab, Bernardo T Lopes, Ashkan Eliasy, Osama Maklad, Richard Wu, Lynn White, Steve Jones, Ahmed Elsheikh, Ahmed Abass   +10 more
doaj   +1 more source

Bilateral simultaneous cataract surgery and intraocular lens implantation in an adult female chimpanzee (Pan troglodytes) inducing monovision

Veterinary Ophthalmology, Volume 28, Issue 2, Page 457-464, March 2025.
Abstract Background Cataract is the major cause of visual impairment in humans. Phacoemulsification with intraocular lens (IOL) implantation is the standard technique for cataract treatment with a high success rate. In a few cases, the surgical cataract procedure and lens implantation have been applied in non‐human primates.
F. Notting, Y. Cheng, M. Marinkovic, H. van Bolhuis, I. Notting   +4 more
wiley   +1 more source