Results 101 to 110 of about 406,516 (266)

The thinnest, steepest, and maximum elevation Corneal locations in noncontact and contact lens wearers in keratoconus [PDF]

, 2013
PURPOSE:: To assess the relationship between the thinnest corneal location and the steepest and maximum elevation corneal locations in subjects with keratoconus and the effect of gas permeable contact lens wear on the location of these points.
Auffarth, Caporossi, Chen, Colin, De Sanctis, De Sanctis, Demirbas, Edwards, Gordon, Hwang, Kawamorita, Kyminois, Lema, Lema, Liu, Maeda, McMahon, Mihaltz, Nilforoushan, Perry, Rabinowitz, Romero-Jimenez, Szcotka, Wilson, Wollensak   +24 more
core   +1 more source

A review of angle kappa and multifocal intraocular lenses and their effect on visual outcomes

Acta Ophthalmologica, EarlyView.
Abstract Although most patients are satisfied with their vision after multifocal intraocular lens (IOL) implantation, dissatisfaction has been reported for various reasons, including poor visual outcomes and visual disturbances. Many published reports hypothesise that preoperative angle kappa may be an associated factor in patient dissatisfaction ...
Thomas Kohnen, Viswanathan Ramasubramanian, Rajaraman Suryakumar   +2 more
wiley   +1 more source

Corneal Biomechanics in Ectatic Diseases: Refractive Surgery Implications. [PDF]

, 2017
BACKGROUND: Ectasia development occurs due to a chronic corneal biomechanical decompensation or weakness, resulting in stromal thinning and corneal protrusion. This leads to corneal steepening, increase in astigmatism, and irregularity.
Ahmed Elsheikh, Ali N.Q., Allan Luz, Ambrosio R., Ambrósio R Jr., Ambrósio R., Ambrósio R., Ambrósio R., Ambrósio R., Ambrósio R., Ambrósio R., Ambrósio R., Ambrósio R., Ambrósio R., Bak-Nielsen S., Bao F., Bao F., Belin M.W., Bernardo Lopes, Binder P.S., Broman A.T., Congdon N.G., Cynthia J. Roberts, Daniel G. Dawson, Dupps W.J., Dupps W.J., Faria-Correia F., Fernando Faria Correia, Fontes B.M., Fontes B.M., Fontes B.M., Fontes B.M., Fontes B.M., Galletti JD, Girard M.J., Goebels S., Gomes J.A., Hallahan K.M., Huang C., Ji C., Joda A.A., Joda A.A., Johnson R.D., Kerautret J., Kirwan C., Koprowski R., Kymionis G.D., Labiris G., Labiris G., Lopes B, Lopes B.T., Luce D.A., Luz A., Luz A., Luz A., Luz A., Maeda N., Marcella Q., Marcella Q. Salomão, McGhee C.N., Mikielewicz M., Paolo Vinciguerra, Peña-García P., Piñero D.P., Qazi M.A., Rabinowitz Y.S., Rabinowitz Y.S., Renato Ambrósio, Jr, Riccardo Vinciguerra, Roberts C.J., Roberts C.J., Roberts CJ., Saad A., Scarcelli G., Scarcelli G., Scarcelli G., Scarcelli G., Schoneveld P., Seiler T., Shah S., Shah S., Smadja D., Smedowski A., Steinberg J., Steinberg J., Tian L, Tian L., Tomita M., Valbon B.F., Vellara H.R., Ventura B.V., Vinciguerra R., Vinciguerra R., Wagner H., Wang L.K., Wilson S.E., Wolffsohn J.S., Ye C.   +97 more
core   +1 more source

Congenital aniridia: European COST action ANIRIDIA‐NET guidelines for diagnosis, management and care

Acta Ophthalmologica, EarlyView.
Abstract Congenital aniridia is a rare ocular disorder affecting the majority of eye structures and can be associated with systemic manifestations. The main visible phenotypic characteristic is the partial or complete absence of the iris; however, foveal hypoplasia is a more frequent and reliable clinical sign. Other ocular comorbidities are associated
Davide Romano, Vito Romano, Alejandra Daruich, Giulio Ferrari, Matthieu Robert, Francesco Semeraro, Neil Lagali, Dominique Bremond‐Gignac, the ANIRIDIA‐NET Clinical Guidelines Working Group, Miriam Barbany, Claus Cursiefen, Stefano Ferrari, Francisco Figueiredo, Christina Grupcheva, Jesper Hjortdal, Elke Kreps, Erlend Landsend, Laura Mauring, Hilde Pedersen, Nora Szentmáry, Bogumil Wowra, the Aniridia‐Europa and Geniris Working Group, Sophie Valleix, Juan Álvarez de Toledo, James Lauderdale, Tor Paaske Utheim, Paolo Rama   +26 more
wiley   +1 more source

Combined Topography-Guided Trans-Epithelial PRK and PTK for Recalcitrant Recurrent Corneal Erosions in Lattice Corneal Distrophy

International Medical Case Reports Journal, 2023
Francesco Pignatelli,1 Fedele Passidomo,1 Rosa Buonamassa,2 Alfredo Niro,1 Giuseppe Addabbo1 1Eye Clinic, “SS. Annunziata” Hospital, ASL Taranto, Taranto, Italy; 2Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari ...
Pignatelli F, Passidomo F, Buonamassa R, Niro A, Addabbo G   +4 more
doaj  

Analysis of corneal morphologic and pathologic changes in early-stage congenital aniridic keratopathy

International Journal of Ophthalmology, 2017
AIM: To determine typical corneal changes of congenital aniridic keratopathy (CAK) using corneal topography and confocal systems, and to identify characteristics that might assist in early diagnosis.
Juan Du, Rong-Qiang Liu, Lei Ye, Zhi-Hui Li, Feng-Tu Zhao, Nan Jiang, Lin-Hong Ye, Yi Shao   +7 more
doaj   +1 more source

Femtosecond Laser-Assisted In Situ Keratomileusis Treatment of Residual Refractive Error following Femtosecond Laser-Enabled Keratoplasty. [PDF]

, 2019
Purpose:To evaluate the safety and effectiveness of femtosecond laser-assisted in situ keratomileusis (LASIK) in the treatment of residual myopia and astigmatism following femtosecond laser-enabled keratoplasty (FLEK).
Farid, Marjan, Muniz Castro, Hannah, Shen, Elizabeth, Tsai, Lester, Wade, Matthew   +4 more
core   +1 more source

Optical coherence tomography-based topography determination of corneal grafts in eye bank cultivation

Journal of Biomedical Optics, 2017
. Vision loss due to corneal injuries or diseases can be treated by transplantation of human corneal grafts (keratoplasty). However, quality assurance in retrieving and cultivating the tissue transplants is confined to visual and microbiological testing.
A. Damian, B. Seitz, A. Langenbucher, T. Eppig   +3 more
semanticscholar   +1 more source

Stromal Curvature, Power and Corneal‐Stromal Curvature Ratios From a Hybrid AS‐OCT in Eyes With Keratoconus

Clinical &Experimental Ophthalmology, EarlyView.
ABSTRACT Background To characterise stromal curvature and curvature ratios in keratoconus (KCN) using anterior segment OCT, and to evaluate the implications of using single‐, two‐, and three‐surface refractive models for corneal power estimation in ectatic eyes. Methods Retrospective observational study.
Jascha A. Wendelstein, Annabella Ostermaier, Katrin Freller, Arianna Grendele, Giacomo Savini, Catarina Praefke Coutinho, Robert Herber, Nikolaus Luft, Stefan Kassumeh, Achim Langenbucher, Siegfried Priglinger   +10 more
wiley   +1 more source

Predictive Correction Model for Corneal Back Surface Astigmatism With IOLMaster700 Keratometry Data in a Cataractous Population

Clinical &Experimental Ophthalmology, EarlyView.
ABSTRACT Background To develop and validate various models to predict total keratometry (TK) power vector components TKC0 and TKC45 from classical keratometry (K) KC0 and KC45 based on a large dataset of pre cataract surgery IOLMaster 700 measurements.
Achim Langenbucher, Peter Hoffmann, Alan Cayless, Nóra Szentmáry, Kamran Riaz, Damien Gatinel, Oliver Findl, Seth Pantanelli, Tun Kuan Yeo, Giacomo Savini, Jascha Wendelstein   +10 more
wiley   +1 more source