Results 31 to 40 of about 1,173 (185)

Discussing Questions of Laser Refractive Surgery in Hyperopia: Literature Review and Clinical Experience

Oftalʹmologiâ, 2022
Relevance. Modern keratorefractive surgery is a high-tech field of ophthalmology aimed at solving various problems of correcting a wide range of ametropias.Objective: to formulate recommendations for refractive surgeons when planning the correction of ...
N. V. Maychuk, I. A. Mushkova, I. S. Malyshev, M. R. Obraztsova   +3 more
doaj   +1 more source

Calculations of actual corneal astigmatism using total corneal refractive power before and after myopic keratorefractive surgery. [PDF]

PLoS One, 2017
PURPOSE: To calculate actual corneal astigmatism using the total corneal refractive astigmatism for the 4-mm apex zone of the Pentacam (TCRP4astig) and keratometric astigmatism (Kastig) before and after photorefractive keratectomy or laser in situ ...
Seo KY, Yang H, Kim WK, Nam SM.
europepmc   +3 more sources

Study psychoemotional status in patients planning keratorefractive surgery using SMILE procedure

Офтальмохирургия, 2022
Purpose. To study frequency and degree of mental stress among patients with myopia planning to keratorefractive surgery using SMILE procedure. Material and methods.
I.V. Dutchin, O.V. Kolenko, O.B. Dutchina, E.L. Sorokin, Yu.V. Kutuzova   +4 more
doaj   +1 more source

Toric intraocular lenses: Evidence‐based use

Clinical &Experimental Ophthalmology, Volume 50, Issue 5, Page 481-489, July 2022., 2022
Abstract Uncorrected refractive astigmatism degrades visual acuity. Spherical intraocular lenses (IOLs) leave astigmatic errors resident in the cornea manifest in refractive astigmatism. Toric IOLs, correcting for this corneal astigmatism, contribute to spectacle‐free vision in the pseudophakic eye.
Michael Goggin
wiley   +1 more source

Prediction of corneal back surface power – Deep learning algorithm versus multivariate regression

Ophthalmic and Physiological Optics, Volume 42, Issue 1, Page 185-194, January 2022., 2022
Abstract Background The corneal back surface is known to add some against the rule astigmatism, with implications in cataract surgery with toric lens implantation. This study aimed to set up and validate a deep learning algorithm to predict corneal back surface power from the corneal front surface power and biometric measures.
Achim Langenbucher, Nóra Szentmáry, Alan Cayless, Johannes Weisensee, Jascha Wendelstein, Peter Hoffmann   +5 more
wiley   +1 more source

A Review of Intraocular Pressure (IOP) and Axial Myopia

Journal of Ophthalmology, Volume 2022, Issue 1, 2022., 2022
The pathogenesis of myopia is driven by genetic and environmental risk factors. Accommodation not only alters the curvature and shape of the lens but also involves contraction of the ciliary and extraocular muscles, which influences intraocular pressure (IOP). Scleral matrix remodeling has been shown to contribute to the biomechanical susceptibility of
Dongyan Zhang, Liyin Wang, Le Jin, Yingying Wen, Xuhong Zhang, Liyue Zhang, Hong Zhu, Ziyu Wang, Xin Yu, Chen Xie, Jianping Tong, Ye Shen, Sudhir Patel   +12 more
wiley   +1 more source

A Hospital‐Based Study on the Prevalence of Keratoconus in First‐Degree Relatives of Patients with Keratoconus in Central China

Journal of Ophthalmology, Volume 2022, Issue 1, 2022., 2022
Purpose. The present study investigated the prevalence of keratoconus (KC) among first‐degree relatives of KC patients in Central China. Methods. From July 2018 to March 2022, 661 first‐degree relatives of 384 KC patients were included in the present study.
Yawen Wang, Liyan Xu, Shaopei Wang, Kaili Yang, Yuwei Gu, Qi Fan, Qing Wang, Meng Zhu, Kai Guo, Chenjiu Pang, Shengwei Ren, Dongqing Zhao, Zisis Gatzioufas   +12 more
wiley   +1 more source

Comparison of the Clinical Outcomes between Combined Femtosecond Laser‐Assisted In Situ Keratomileusis and Corneal Cross Linking versus Combined Small‐Incision Lenticule Extraction and Corneal Cross Linking

Journal of Ophthalmology, Volume 2022, Issue 1, 2022., 2022
Purpose. The purpose of this study was to compare femtosecond laser‐assisted in situ keratomileusis with prophylactic cross linking (FS‐LASIK Xtra) and small‐incision lenticule extraction with prophylactic cross linking (SMILE Xtra) in terms of their postoperative clinical outcomes. Methods.
Yu Di, Fei Mo, Ying Li, Zisis Gatzioufas
wiley   +1 more source

[Retracted] Excimer Laser Corneal Refractive Surgery in the Clinic: A Systematic Review and Meta‐analysis

Computational and Mathematical Methods in Medicine, Volume 2022, Issue 1, 2022., 2022
Objective. To systematically evaluate the efficacy, safety, recovery speed, and long‐term visual quality of excimer laser corneal refractive surgery and to provide evidence‐based medicine for the promotion and use of excimer laser corneal refractive surgery. Methods.
Huang Zhang, Mingming Li, Zhimin Cen, Min Tang   +3 more
wiley   +1 more source

Intraocular correction of presbyopia after laser keratorefractive surgery

Офтальмохирургия, 2022
Purpose. To present the results of research on modern aspects of intraocular correction of presbyopia after laser keratorefractive surgery. Material and methods.
A.V. Doga, E.V. Kechin, A.V. Golovin, A.N. Karimova, N.R. Tsikarishvili, A.N. Dzhaber   +5 more
doaj   +1 more source