Results 21 to 30 of about 17,902 (180)

Pattern of corneal astigmatism induced by primary pterygium in patients with cataract in a secondary hospital in Southern China: a cross-sectional study

BMJ Open, 2020
Objectives To review the pattern of primary pterygium-induced corneal astigmatism in patients with cataract in a southern Chinese population.Design Clinic-based cross-sectional retrospective study.Setting A secondary hospital at southern China ...
Guihua Xu, Wei Qi, Yijun Hu
doaj   +1 more source

Multivariate Regression Analysis to Predict Postoperative Refractive Astigmatism in Cataract Surgery

Journal of Ophthalmology, 2020
Purpose. To assess the correlation between postoperative refractive astigmatism and preoperative parameters in cataract surgery. Methods. Left eyes of 100 consecutive patients scheduled for cataract surgery with a 2.4 mm clear corneal incision were ...
Atsushi Kawahara, Tatsuhiko Sato, Ken Hayashi   +2 more
doaj   +1 more source

Impact of corneal astigmatism on refractive outcomes after phacoemulsification with implantation of a spherical IOL

Journal of Ophthalmology, 2021
Background: To date, particular emphasis is being put to correction of preoperative corneal astigmatism in phacoemulsification, since approximately 30% of the world’s population has astigmatism of at least 0.75D which results in decreased visual acuity ...
N. G. Zavgorodnia, V. Iu. Novikova
doaj   +1 more source

Regular and irregular astigmatism of bullous keratopathy using Fourier harmonic analysis with anterior segment optical coherence tomography

Scientific Reports, 2022
Bullous keratopathy (BK) is known to present with corneal edema and Descemet's folds, which can cause corneal astigmatism. However, no report quantitatively evaluated BK astigmatism by separating it into regular and irregular astigmatism.
Lily Wei Chen, Takashi Ono, Yumi Hashimoto, Miki Tsuneya, Yuito Abe, Takashi Omoto, Yukako Taketani, Tetsuya Toyono, Makoto Aihara, Takashi Miyai   +9 more
doaj   +1 more source

Age Differences in Axial Length, Corneal Curvature, and Corneal Astigmatism in Marfan Syndrome with Ectopia Lentis

Journal of Ophthalmology, 2018
Purpose. To investigate the differences in axial length, corneal curvature, and corneal astigmatism with age in patients with Marfan syndrome (MFS) and ectopia lentis. Methods. A retrospective case series study was conducted.
Jiahui Chen, Qinghe Jing, Yating Tang, Dongjin Qian, Yi Lu, Yongxiang Jiang   +5 more
doaj   +1 more source

Toric intraocular lens implantation in cataract patients with corneal opacity

BMC Ophthalmology, 2020
Background To evaluate the effect of toric intraocular lens implantation in cataract patient with corneal opacity and high astigmatism. Methods Thirty-one eyes of 31 patients who underwent cataract surgery with toric intraocular lens implantation were ...
Ho Ra, Ho Sik Hwang, Hyun Seung Kim, Man Soo Kim, Eun Chul Kim   +4 more
doaj   +1 more source

Corneal Astigmatism in Cataract

Journal of the College of Physicians and Surgeons Pakistan
To measure preoperative corneal astigmatism in cataract patients.Descriptive study. Place and Duration of the Study: Mughal Eye Hospital, Lahore, from 2018 to 2022.The amount of preoperative corneal astigmatism was noted in cataract patients. Inclusion criteria included cataract patients above 16 years of age.
Khawaja Khalid, Shoaib, Tariq, Shakoor
openaire   +2 more sources

Postoperative Corneal and Surgically Induced Astigmatism following Superior Approach Manual Small Incision Cataract Surgery in Patients with Preoperative Against-the-Rule Astigmatism

Journal of Ophthalmology, 2016
The aim of the study was to report postoperative corneal and surgically induced astigmatism (SIA) in patients with preoperative against-the-rule (ATR) astigmatism who underwent superior approach manual small incision cataract surgery (MSICS).
Edmund Arthur, Ahmed Abdul Sadik, David Ben Kumah, Eugene Appenteng Osae, Felix Agyemang Mireku, Frank Yeboah Asiedu, Reynolds Kwame Ablordeppey   +6 more
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

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