Results 41 to 50 of about 43,431 (244)

Changes in astigmatism after horizontal muscle recession strabismus surgery: A retrospective cohort study

open access: yesIndian Journal of Ophthalmology, 2021
Purpose: The aim of this study was to evaluate the changes in astigmatism after unilateral recession of horizontal rectus muscles in pediatric patients.
Christina Karakosta   +7 more
doaj   +1 more source

Effect of femtosecond laser-assisted steepest-meridian clear corneal incisions on preexisting corneal regular astigmatism at the time of cataract surgery [PDF]

open access: yesInternational Journal of Ophthalmology, 2020
AIM: To investigate the clinical efficacy and safety of femtosecond laser-assisted steepest-meridian clear corneal incisions for correcting preexisting corneal astigmatism performed at the time of cataract surgery.
Wei Chen   +7 more
doaj   +1 more source

Leftover Astigmatism: The Missing Link Between Measured and Calculated Posterior Corneal Astigmatism

open access: yes, 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

Contribution of Posterior Corneal Astigmatism to Total Corneal Astigmatism in a Sample of Egyptian Population

open access: yesClinical Ophthalmology, 2020
Mohamed Hosny, Alaa Badawy, Lobna Khazbak, Mohamed Anis, Sarah Azzam Ophthalmology, Cairo University, Giza, EgyptCorrespondence: Mohamed HosnyOphthalmology, Cairo University, 84 Shehab Street, Mohandeseen, Giza 12411, EgyptTel +20 1000007675Email ...
Hosny M   +4 more
doaj  

Comparison of penetrating femtosecond laser-assisted astigmatic keratotomy and toric intraocular lens implantation for correction of astigmatism in cataract surgery

open access: yesScientific Reports, 2021
This study tried to compare the clinical outcomes of femtosecond laser-assisted astigmatic keratotomy (FSAK) and toric intraocular lens (IOL) implantation for astigmatism correction and identify factors affecting the efficacy of FSAK and toric IOL ...
Hoon Noh   +4 more
doaj   +1 more source

Astigmatism [PDF]

open access: yes, 2012
This book explores the development, optics and physiology of astigmatism and places this knowledge in the context of modern management of this aspect of refractive error.

core   +1 more source

Surgical approaches to correct corneal astigmatism at time of cataract surgery: a mini-review [PDF]

open access: yesInternational Journal of Ophthalmology
Among refractive errors, astigmatism is the most common optical aberration, where refraction changes in different meridians of the eye. It causes blurred vision at any distance and includes corneal, lenticular, and retinal astigmatism.
Xiao-Lei Yin   +4 more
doaj   +1 more source

Atomic Defects in Layered Transition Metal Dichalcogenides for Sustainable Energy Storage and the Intelligent Trends in Data Analytics

open access: yesAdvanced Science, EarlyView.
This review comprehensively summarizes the atomic defects in TMDs for their applications in sustainable energy storage devices, along with the latest progress in ML methodologies for high‐throughput TEM data analysis, offering insights on how ML‐empowered microscopy facilitates bridging structure–property correlation and inspires knowledge for precise ...
Zheng Luo   +6 more
wiley   +1 more source

The Impact of Posterior Corneal Astigmatism on Surgically Induced Astigmatism in Cataract Surgery

open access: yesInternational Journal of General Medicine, 2022
Wenjie Liu,* Lichun Yang,* Jiewei Liu Cataract Department, Shanxi Eye Hospital, Taiyuan, Shanxi Province, People’s Republic of China*These authors contributed equally to this workCorrespondence: Jiewei Liu, Email jieweiliu1967@163.comPurpose:
Liu W, Yang L, Liu J
doaj  

Long-term outcomes of cataract surgery with toric intraocular lens implantation by the type of preoperative astigmatism

open access: yesScientific Reports, 2022
Surgical outcomes of toric intraocular lens (IOL) implantation for 8 years after surgery were analyzed. Data were retrospectively collected in 176 eyes of 176 patients before and 1 month, 1, 3, 5, and 8 years after phacoemulsification and implantation of
Tetsuro Oshika   +9 more
doaj   +1 more source

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