Results 71 to 80 of about 2,701 (197)

Deciphering the performance of different surface models for corneal topography

Ophthalmic and Physiological Optics, Volume 45, Issue 6, Page 1270-1281, September 2025.
Abstract Purpose To study the performance of different corneal surface models to be used for ray tracing. Models based on geometric surfaces and polynomial fits were compared and the differences discussed. Methods For this simulation study, five characteristic generic surface configurations were generated: (A) perfect biconic, (B) decentred biconic ...
Achim Langenbucher, Nóra Szentmáry, Alan Cayless, Peter Hoffmann, Jascha Wendelstein   +4 more
wiley   +1 more source

In-the-bag decentration of a hydrophilic radially asymmetric multifocal intraocular lens secondary to capsule contraction.

, 2013
Item does not contain fulltextWe report a case of in-the-bag decentration and tilt of a hydrophilic rotationally asymmetric multifocal intraocular lens (IOL) of the M Plus type secondary to capsule contraction.
Mourits, M.P., Mourits, Maarten P., Meulen, I.J. van der, Lapid-Gortzak, Ruth, van der Linden, Jan Willem, van der Meulen, Ivanka J., Lapid-Gortzak, R., Linden, J.W.M. van der   +7 more
core   +1 more source

Effect of crystalline lens decentration and tilt on visual performance in eyes implanted with bifocal or extended depth of focus intraocular lenses

BMC Ophthalmology
Purpose To explore the potential of crystalline lens decentration and tilt as indicators for screening cataract patients for presbyopia-correcting intraocular lens (IOL) implantation. Methods Prospective observational study.
Yu Zhang, Jiaqing Zhang, Chen Liang, Yifan Xu, Jiaying Wu, Junming Wu, Yifan Zhang, Aixia Jin, Xuhua Tan, Lixia Luo   +9 more
doaj   +1 more source

Long‐term results after sutureless intrascleral fixation of the Carlevale intraocular lens: Changes in scleral pocket thickness over time

Acta Ophthalmologica, Volume 103, Issue 5, Page e290-e297, August 2025.
Abstract Purpose To investigate the long‐term effects and dynamic changes in scleral thickness above the T‐haptic after sutureless scleral‐fixated intraocular lens (sSFIOL) implantation using the FIL‐SFF Carlevale lens. Setting Single‐centre, single‐surgeon, prospective clinical trial, Department of Ophthalmology, Medical University of Vienna, Austria.
Markus Schranz, Ioanna Dimakopoulou, Marcus Lisy, Victor Danzinger, Daniel Schartmüller, Claudette Abela‐Formanek   +5 more
wiley   +1 more source

The Homburg‐Adelaide toric IOL nomogram: How to predict corneal power vectors from preoperative IOLMaster 700 keratometry and total corneal power in toric IOL implantation

Acta Ophthalmologica, Volume 103, Issue 1, Page e19-e30, February 2025.
Abstract Purpose The purpose of this study is to compare the reconstructed corneal power (RCP) by working backwards from the post‐implantation spectacle refraction and toric intraocular lens power and to develop the models for mapping preoperative keratometry and total corneal power to RCP.
Achim Langenbucher, Nóra Szentmáry, Jascha Wendelstein, Alan Cayless, Peter Hoffmann, Michael Goggin   +5 more
wiley   +1 more source

Spontaneous late dislocation of IOL in a case of Pseudoexfoliation Syndrome

Delhi Journal of Ophthalmology, 2012
We report a case of pseudo exfoliation (PEX) syndrome with decentration of IntraOcular Lens (IOL) in right eye and dislocation in left eye. A 60 year old patient presented to us with history of sudden diminution of vision (FC at 2 meter) in left eye (LE)
Anand Kumar Kulariya, Bipul Baishya, C S Vyas, Arvind Chauhan   +3 more
doaj   +1 more source

Late Reverse Pupillary Block After Scleral Fixation With Yamane Technique: A Case Report

Case Reports in Ophthalmological Medicine, Volume 2025, Issue 1, 2025.
Introduction The Yamane technique is a transconjunctival, sutureless method for scleral fixation of intraocular lenses (IOL) in cases lacking capsular support. While widely adopted because of its efficacy and safety, rare late complications such as IOL subluxation have been reported.
Maria J. Chaves-Samaniego, Gunjan Awatramani, Nazimul Hussain, Stephen G. Schwartz   +3 more
wiley   +1 more source

Optical Design of Intraocular Lenses. III. On-Axis Performance in the Presence of Lens Displacement

, 1989
The effect of intraocular lens shape on on-axis performance of model pseudophakic eyes was investigated, when lenses were displaced by tilting or decentration.
Atchison, David A.
core  

Positioning of intraocular lens haptics intentionally implanted in the ciliary sulcus by ultrasound biomicroscopy [PDF]

, 2013
PURPOSE: To evaluate the position of haptics of intraocular lens intentionally implanted in the ciliary sulcus in eyes undergoing cataract surgery complication associated with intraoperative posterior capsule rupture, as well as to correlate the findings
Silva, André Luiz de Freitas [UNIFESP], Santana, Carmen Resende [UNIFESP], Martinez, Andrea Alejandra Gonzalez [UNIFESP], Allemann, Norma [UNIFESP], Rau, Ricardo [UNIFESP]   +4 more
core   +1 more source

Visual Outcomes of a New Hydrophobic Trifocal Intraocular Lens in Cataract Treatment: A Prospective Clinical Study

Journal of Ophthalmology, Volume 2025, Issue 1, 2025.
Purpose: To report the visual outcomes following bilateral implantation of a new trifocal intraocular lens (IOL) in patients with age‐related cataracts. Methods: This prospective, noncomparative, multicenter study assessed 126 patients undergoing cataract extraction followed by AT ELANA 841P IOL implantation.
Andrea Janeková, Peter Mojžiš, Iveta Němcová, Marek Kačerík, Pavol Veselý, Lucia Hrčková, Sudhir Patel   +6 more
wiley   +1 more source