Results 41 to 50 of about 21,095 (219)

Corneal Astigmatism Measurements Comparison among Ray-Tracing Aberrometry, Partial Coherence Interferometry, and Scheimpflug Imaging System

Journal of Ophthalmology, 2020
Purpose. To investigate interdevice agreement among corneal topography/ray-tracing aberrometry (iTrace), partial coherence interferometry (IOLMaster), and Scheimpflug imaging (Pentacam) for the measurement of corneal astigmatism. Methods.
Yaqin Zhang, Jing Dong, Suhua Zhang, Bin Sun, Xiaoliang Wang, Maolong Tang, Xiaogang Wang   +6 more
doaj   +1 more source

Changes in choroidal and retinal thickness 6 months before and during 18 months of orthokeratology lens treatment in myopic children

Acta Ophthalmologica, EarlyView.
Abstract Purpose To investigate changes in choroidal and retinal thickness before and during myopia control treatment with orthokeratology lenses (OKL) in myopic children. Methods This was a sub‐study of CONTROL and CONTROL2 studies. The present study was a 2‐year, prospective, single‐group interventional study consisting of a 6‐month pre‐treatment ...
P. O. Hansen, F. Møller, T. M. Jakobsen
wiley   +1 more source

Repeatability of keratometry depending on tear film osmolarity

Acta Ophthalmologica, EarlyView.
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

Intrastromal corneal ring segment implantation for high astigmatism after penetrating keratoplasty

, 2009
Purpose: To evaluate the safety and efficacy of intracorneal ring segments (ICRS) for high astigmatism after penetrating keratoplasty (PKP). Setting: Department of Ocular Surface and Inflammation, Ophthalmology, Hospital Clínico San Carlos, Complutense ...
Cuiña Sardiña, Ricardo, Benítez Del Castillo Sánchez, José Manuel, Güell, José Luis, Arriola Villalobos, Pedro, Díaz Valle, David, Iradier Urrutia, María Teresa, Jiménez Alfaro, Iñigo   +6 more
core   +1 more source

Effect of 1.8-mm steep-axis clear corneal incision on the posterior corneal astigmatism in candidates for toric IOL implantation

BMC Ophthalmology, 2020
Background In the present study, we aimed to analyze the effects of cataract surgery using a 1.8-mm steep-axis clear corneal incision (CCI) on the posterior corneal surfaces based on the keratometry from the rotating Scheimpflug imaging device (Pentacam ...
Xi Li, Xiang Chen, Suhong He, Wen Xu
doaj   +1 more source

Patient‐reported outcomes and visual function after four refractive strategies in cataract surgery: A randomized controlled trial

Acta Ophthalmologica, EarlyView.
Abstract Purpose To evaluate patient‐reported outcome measures (PROMs) and visual function across four groups of public cataract patients: emmetropia, mini‐monovision, monovision with partial‐range of field (RoF) narrow intraocular lenses (IOLs) and patients implanted with partial‐RoF extended IOLs.
Anne Guldhammer Skov, Morten la Cour, Birgitte Moldow, Lars Holm, Therese Krarup   +4 more
wiley   +1 more source

Contributions of Anterior Corneal and Ocular Residual Astigmatism to Autorefraction Astigmatism in a Myopic Adult Sample

Clinical Ophthalmology, 2020
Amr A Gab-Alla Ophthalmology Department, Faculty of Medicine, Suez Canal University, Ismailia, EgyptCorrespondence: Amr A Gab-AllaOphthalmology Department, Faculty of Medicine, Suez Canal University, Ring Road, Ismailia, EgyptTel +20 1222836261Email ...
Gab-Alla AA
doaj  

Decision making in pterygium surgery: Our experience noting the length of pterygium

Kerala Journal of Ophthalmology, 2021
Background: This is a prospective study which aims: To compare the preoperative and postoperative corneal astigmatism in patients undergoing pterygium excision by conjunctival autograft technique using autologous blood.
Anjali Lita Roche, Narendra Panduranga Datti, Indu Govind, Ravikiran Kamunuri   +3 more
doaj   +1 more source

Corneal transplantation: Restoring sight to the blind

Acta Ophthalmologica, EarlyView.
Abstract Corneal blindness is one of the leading causes of vision loss worldwide. Transplantation of the cornea can restore vision and make blind patients see again. Corneal transplant surgery has undergone major evolution in recent decades with the advent of minimally invasive lamellar surgical approaches such as DMEK and DALK.
Claus Cursiefen
wiley   +1 more source

Investigating the impact of preoperative corneal astigmatism orientation on the postoperative spherical equivalent refraction following intraocular lens implantation

Eye and Vision, 2018
Background To investigate the impact of the orientation of preoperative corneal astigmatism on achieving the postoperative target refraction following monofocal intraocular lens (IOL) implantation.
Richard N. McNeely, Salissou Moutari, Eric Pazo, Jonathan E. Moore   +3 more
doaj   +1 more source