Results 91 to 100 of about 828,745 (178)

Bland-Altman plots shows the difference between 2 measurements divided by mean of these posterior corneal astigmatism measurements.

, 2015
The solid lines represent mean differences between 2 consecutive measurements of posterior corneal astigmatism, dotted lines are the upper and lower borders of the 95% LoA (mean difference ± 1.96 multiplied by SD of the mean difference).
Kazutaka Kamiya (284327), Toshiyuki Miyake (686662), Kimiya Shimizu (284328)   +2 more
core   +1 more source

Effects of posterior corneal astigmatism on the accuracy of AcrySof toric intraocular lens astigmatism correction

International Journal of Ophthalmology, 2016
To evaluate the effects of posterior corneal surface measurements on the accuracy of total estimated corneal astigmatism.Fifty-seven patients with toric intraocular lens (IOL) implantation and posterior corneal astigmatism exceeding 0.5 diopter were enrolled in this retrospective study.
Bin, Zhang, Jing-Xue, Ma, Dan-Yan, Liu, Cong-Rong, Guo, Ying-Hua, Du, Xiu-Jin, Guo, Yue-Xian, Cui   +6 more
openaire   +2 more sources

Corneal Curvature, Astigmatism, and Aberrations in Marfan Syndrome with Lens Subluxation: Evaluation by Pentacam HR System

, 2018
Marfan syndrome (MFS) is associated with abnormalities of corneal biometric characteristics. We conducted a retrospective case-control study including 55 eyes of the MFS patients with lens subluxation and 53 normal eyes of the control subjects to ...
Dongjin Qian, Jiahui Chen, Yongxiang Jiang, Qinghe Jing, Yating Tang, Yi Lu   +5 more
core   +1 more source

Agreement Between Refractive and Corneal Astigmatism in Pseudophakic Eyes [PDF]

, 2013
© 2012 by Lippincott Williams & Wilkins. This document is the Published version of a Published Work that appeared in final form in Cornea. To access the final edited and published work see [https://doi.org/10.1097/ICO.0b013e31826dd44b]Purpose: To examine
Guirao, Antonio, Tejedor, Jaime
core   +1 more source

Comparison of Barrett Toric Calculations Using Measured and Predicted Posterior Corneal Astigmatism in Cataract Surgery Patients. [PDF]

Clin Ophthalmol, 2022
Lukewich MK, Murtaza F, Somani S, Tam ES, Chiu HH.   +4 more
europepmc   +1 more source

Posterior Corneal Surface Stability after Femtosecond Laser-Assisted Keratomileusis

Journal of Ophthalmology, 2015
The purpose of this study was to evaluate posterior corneal surface variation after femtosecond laser-assisted keratomileusis in patients with myopia and myopic astigmatism. Patients were evaluated by corneal tomography preoperatively and at 1, 6, and 12
Carlo Cagini, Marco Messina, Marco Lupidi, Francesco Piccinelli, Tito Fiore, Daniela Fruttini, Leopoldo Spadea   +6 more
doaj   +1 more source

Predicted vs measured posterior corneal astigmatism for toric intraocular lens calculations. [PDF]

J Cataract Refract Surg, 2022
Shammas HJ, Yu F, Shammas MC, Jivrajka R, Hakimeh C.   +4 more
europepmc   +1 more source

Analysis of surgically induced astigmatism of the anterior, posterior, and total cornea after implantable collamer lens implantation: a comparative study between temporal and superior clear corneal incisions

BMC Ophthalmology
Background To comparatively analyze the surgically induced astigmatism (SIA) of the anterior, posterior, and total corneas of eyes undertaking implantable collamer lens (ICL) implantation with temporal or superior corneal incisions.
Ting Wan, Huaicheng Chen, Shirou Wu, Hongying Jin   +3 more
doaj   +1 more source

Calculation of the total corneal astigmatism using the virtual cross cylinder method on the secondary principal plane of the cornea

Scientific Reports
This study aimed to establish a virtual cross cylinder method to calculate the total corneal astigmatism by combining the anterior and posterior corneal astigmatism on the secondary principal plane of the cornea based on Gaussian optics.
Yukitaka Danjo
doaj   +1 more source

Comparison of the influence of 1% and 0.01% atropine on the corneal topography in myopic children

BMC Ophthalmology
Purpose To assess the alterations in corneal topography with either 1% or 0.01% atropine treatment in myopic children. Methods This 6-month randomized controlled trial enrolled myopic children aged 6–12 years and randomly allocated them to group A (n ...
Li-Quan Zhao, Lu-Yao Ye, Jun Chen, Xiao-Feng Zhu, Han-Nan Xu, Tao Yu, Ya-Jun Peng, Jiang-Nan He, Jian-Feng Zhu   +8 more
doaj   +1 more source