Results 21 to 30 of about 21,095 (219)
Predicting Residual Astigmatism in Cataract Surgery
Vision, 2022 The purpose of this review is to evaluate the prediction of postoperative residual astigmatism and to determine the best prediction method for astigmatism correction.
Atsushi Kawahara
doaj +1 more source
Corneal astigmatism in applanation tonometry [PDF]
Eye, 2003 This short study aims at quantitatively correlating scale readings of the Goldmann tonometer to corneal curvatures in one and the same eye.A total of 30 eyes of 21 adult patients who presented themselves in clinical practice for routine examination were arbitrarily selected.
H H, Mark, T L, Mark
openaire +2 more sources
Near visual function measured with a novel tablet application in patients with astigmatism
Clinical and Experimental Optometry, EarlyView., 2020 Clinical relevance While the clinical focus of performance metrics is traditionally based on visual acuity, research from the field of visual impairment has demonstrated that metrics such as reading speed and critical print size correlate much more strongly with subjective patient reported outcomes and assessed ability in real‐world tasks.
Ananya Datta +8 more
wiley +1 more source
Posterior Corneal Characteristics of Cataract Patients with High Myopia.
PLoS ONE, 2016 PurposeTo evaluate the characteristics of the posterior corneal surface in patients with high myopia before cataract surgery.MethodsWe performed a cross-sectional study at the Eye and ENT Hospital of Fudan University, Shanghai, China. Corneal astigmatism
Qinghe Jing +4 more
doaj +1 more source
Corneal astigmatism in Graves' ophthalmopathy [PDF]
Eye, 2005 To describe corneal astigmatism in patients under the age of 55 years with Graves' ophthalmopathy and to compare it to a control group.Retrospective, nonrandomized comparative observational case series. A total of 109 patients with inactive Graves' ophthalmopathy and 109 age- and gender-matched control individuals without Graves' ophthalmopathy were ...
I, Mombaerts +2 more
openaire +2 more sources
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 +2 more
doaj +1 more source
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
Posterior Corneal Astigmatism [PDF]
, 2022 In order to calculate an appropriate intraocular lens (IOL) power for an eye undergoing cataract surgery, the most important measurements are the axial length of the eye and corneal shape.
LaHood, Benjamin Richard
core
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
Leftover Astigmatism: The Missing Link Between Measured and Calculated Posterior Corneal Astigmatism
, 2022 Purpose:To quantify the total eye astigmatism that is not accounted for by measurement of anterior corneal astigmatism and posterior corneal astigmatism and knowledge of intraocular lens (IOL) astigmatism and assess whether it is correlated with ...
Roggia, Murilo F. +11 more
core +1 more source