Results 51 to 60 of about 3,210 (165)

Surgical approach affects intraocular lens decentration

Journal of the Formosan Medical Association, 2017
This study aims to quantify and identify risk factors for intraocular lens (IOL) tilt and decentration early after surgery using Scheimpflug imaging. Methods: We prospectively included 268 eyes of 253 patients who underwent uneventful cataract surgery ...
Pei-Yao Chang, Chi-Yang Lian, Jia-Kang Wang, Pei-Yuan Su, Jiun-Yi Wang, Shu-Wen Chang   +5 more
doaj   +1 more source

Corneal Aberrations in Keratoconus: A Pentacam Scheimpflug Imaging Study

Journal of Contemporary Medicine, 2021
Objective To investigate high-order corneal aberration alterations at different KC stages using a Pentacam Scheimpflug camera (OCULUS, Wetzlar, Germany), and to compare data with healthy eyes Materials and Methods This retrospective comparative study ...
Özgür Eroğul, Murat Kaşıkcı, Leyla Eryiğit Eroğul, Hamıdu Hamısı Gobeka   +3 more
doaj   +1 more source

Reconstruction of deep and perforating corneal defects in dogs—A review (Part II/III): Biomaterials and keratoprosthesis

Veterinary Ophthalmology, Volume 28, Issue 2, Page 532-542, March 2025.
Abstract The surgical reconstruction of severe corneal ulcers is a common and crucial component of the clinical practice of veterinary ophthalmology. Numerous surgical techniques are used in dogs for corneal reconstruction, and these techniques may be categorized by the material used to repair the corneal lesion.
Eric C. Ledbetter, Rick F. Sanchez, Marta Leiva Repiso   +2 more
wiley   +1 more source

Corneal power modelling with OCT data – Thin and thick lens paraxial models versus raytracing

Acta Ophthalmologica, Volume 104, Issue 5, Page 498-509, August 2026.
Abstract Background Evaluating keratometric power with Zeiss index (PKZ), paraxial thick cornea power (Gullstrand [PG]) and power referenced to the front (PFV) and back vertex plane (PBV) and raytracing power (PR), and modelling the deviation from PKZ with a multivariable linear prediction model.
Achim Langenbucher, Nóra Szentmáry, Alan Cayless, Peter Hoffmann, Jascha Wendelstein   +4 more
wiley   +1 more source

Biomechanical Measurement of Rabbit Cornea by a Modified Scheimpflug Device

Journal of Ophthalmology, 2016
Purpose. To explore the probability and variation in biomechanical measurements of rabbit cornea by a modified Scheimpflug device. Methods. A modified Scheimpflug device was developed by imaging anterior segment of the model imitating the intact eye at ...
Bo Zhang, Jianjun Gu, Xiaoxiao Zhang, Bin Yang, Zheng Wang, Danying Zheng   +5 more
doaj   +1 more source

Complex descemet′s membrane tears and detachment during phacoemulsification

Journal of Ophthalmic & Vision Research, 2015
Purpose: To report a case of complex Descemet′s membrane detachment (DMD) and tears during phacoemulsification cataract surgery. Case Report: A 64-year-old woman underwent phacoemulsification surgery in her right eye and developed tears and partial loss
Faik Orucoglu, Ali Aksu
doaj   +1 more source

Astigmatic changes after Descemet membrane endothelial keratoplasty (DMEK) in decompensated penetrating keratoplasty grafts

Acta Ophthalmologica, Volume 104, Issue 5, Page e516-e529, August 2026.
Abstract Purpose To evaluate the surgery‐induced changes of astigmatism after Descemet membrane endothelial keratoplasty (DMEK) in eyes with failed previous penetrating keratoplasty (PK). Design Retrospective, interventional cohort study based on prospective DMEK database.
Florian Thomas Steinberg, Jithmi Weliwitage, Marie von Berg, Silvia Schrittenlocher, Simona Schlereth, Claus Cursiefen, Björn Bachmann   +6 more
wiley   +1 more source

Repeatability of keratometry depending on tear film osmolarity

Acta Ophthalmologica, Volume 104, Issue 5, Page e530-e537, August 2026.
Abstract Purpose To determine the repeatability of keratometry and astigmatism measurements of patients depending on the tear film osmolarity using three different devices. Methods In this study, 97 eyes of 97 patients with a mean age of 64.92 ± 12.07 years received three repeated measurements with the IOLMaster 700 (Carl Zeiss Meditec, Jena, Germany),
David Schneider, Klemens Paul Kaiser, Petra Davidova, Thomas Kohnen, Tyll Jandewerth   +4 more
wiley   +1 more source

Ray‐Tracing‐Based Intraocular Lens Power Calculation in Combined Cataract Surgery and Descemet Membrane Endothelial Keratoplasty

Clinical &Experimental Ophthalmology, Volume 54, Issue 6, Page 769-778, August 2026.
ABSTRACT Background To compare the predictive accuracy of ray tracing‐based intraocular lens (IOL) power calculation formulas with the Barrett Universal II (BUII) formula in eyes with Fuchs endothelial corneal dystrophy (FECD) undergoing combined cataract surgery and Descemet membrane endothelial keratoplasty (triple DMEK).
Jan O. Weber, Klemens P. Kaiser, Jascha A. Wendelstein, H. Burkhard Dick, Thomas Kohnen, Ingo Schmack   +5 more
wiley   +1 more source

Immediate Postoperative Decentration of a Biologic Corneal Inlay Managed With Tomography‐Guided Repositioning: A Case Report

Clinical Case Reports, Volume 14, Issue 3, March 2026.
Immediate postoperative Pentacam corneal tomography revealing inferior‐temporal decentration of the biologic corneal inlay on the axial curvature map. ABSTRACT Biologic corneal inlays can rarely present with immediate postoperative decentration, which can be subtle and difficult to detect clinically. Real‐time tomography allows precise early diagnosis,
Giacomo Beschi, Guillermo Rocha
wiley   +1 more source