Results 81 to 90 of about 3,791 (213)

Pigmented corneal ring associated with orthokeratology in caucasians : case reports [PDF]

, 2012
BACKGROUND: The aim was to report the appearance of a pigmented ring in both eyes of two patients undergoing overnight orthokeratology. METHODS: Two Caucasian patients, one male and one female, were fitted with orthokeratology lenses to correct myopia
González-Pérez, Javier, González-Méijome, José Manuel, Garcia-Porta, Nery, Parafita, Manuel A., Diaz-Rey, José Alberto   +4 more
core   +1 more source

Compensated versus uncompensated millimeters during myopia progression: Estimating H′ in children

Optometry and Vision Science, Volume 103, Issue 1, January 2026.
ABSTRACT Purpose The second principal point (H′) of the eye can be used to estimate the diopters of change in refractive error that result from each millimeter of axial elongation. Calculating the location of H′ requires data from phakometry, a technique not included in most myopia control clinical trials.
Derik M. Holmberg, Donald O. Mutti, on behalf of CLEERE Study Group   +2 more
wiley   +1 more source

Trends in the Axis Changes of Astigmatism in Children of Different School Ages and Predictive Analysis of Developmental Models

International Journal of Clinical Practice, Volume 2026, Issue 1, 2026.
Clinical relevance The dynamic changes in astigmatic axis in school‐age children with development guide optometrists in accurate axis determination and regular follow‐up, improving correction efficacy and preventing asthenopia and amblyopia. Purpose This study performs model predictions and investigates the patterns of change in the axis of astigmatism,
Long Tao, Pengfei Liu, Jiajun Chen, Ling Wang, Shasha Xue, Yunxiao Wang, Xiaoyan Sun, Licun Wang, Fenglei Wang, Suraiya Saleem   +9 more
wiley   +1 more source

Peripheral refraction in orthokeratology patients

, 2006
Purpose. The purpose of this study is to measure refraction across the horizontal central visual field in orthokeratology patients before and during treatment.\ud \ud Methods. Refractions were measured out to 34[degrees] eccentricity in both temporal and
Mountford, John, Atchison, David A., Markwell, Emma L., Charman, William N.   +3 more
core  

Interocular Symmetry in Anterior Segment Parameters in Children With Intermittent Exotropia Observed by CASIA2 AS‐OCT

Journal of Ophthalmology, Volume 2026, Issue 1, 2026.
Purpose To explore the interocular symmetry of the anterior segment parameters in subjects with intermittent exotropia (IXT) and compare it with that in the normal subjects. Methods A total of 122 eyes of 61 subjects with IXT and 88 eyes of 44 normal subjects were enrolled.
Jiawei Zhao, Xiaoli Qi, Xiaoyu Zeng, Song Lin, Kadiya Abudukeyimu, Luning Qin, Zong Yu, Nan Wei, Gang Ding, Xue Li, Jing Li, Ning Hua, Xuehan Qian, Shweta Negi   +13 more
wiley   +1 more source

Cost-effectiveness of myopia-control spectacles and contact lenses for children and adolescents in Wales

Cost Effectiveness and Resource Allocation
Background Early intervention to slow childhood progression of myopia may improve quality of life and prevent future complications that burden individuals and healthcare systems. This study assessed the cost-effectiveness of myopia-control spectacles and
Hayley Bennett, Andy Britton, David O’Sullivan, Francesca Lado   +3 more
doaj   +1 more source

Overnight Orthokeratology-Associated Microbial Keratitis

, 2009
Purpose: This study was designed to report the clinical aspects, microbiologic findings, and treatment outcomes of overnight orthokeratology-associated microbial keratitis.
TSENG, CHIA-HUI;FONG, CHIEN-FAN;CHEN, WEI-LI;HOU, YU-CHIH;WANG, I-JONG;HU, FUNG-RONG, 曾佳慧;馮介凡;陳偉勵;侯育致;王一中;胡芳蓉   +1 more
core   +1 more source

Acanthamoeba keratitis related to contact lens use in a tertiary hospital in China

BMC Ophthalmology, 2019
Background To report the clinical and microbiological features of Acanthamoeba keratitis (AK) related to contact lens use in a tertiary hospital in China.
Weiwei Li, Zhiqun Wang, Jinghao Qu, Yang Zhang, Xuguang Sun   +4 more
doaj   +1 more source

Analysis of Treatment Discontinuation in Orthokeratology: Studying Efficacy, Safety, and Patient Adherence Over Six Months. [PDF]

PURPOSE This study aimed to evaluate the efficacy, safety, and participant compliance of orthokeratology treatment for the correction of myopic refractive errors over a six-month prospective study and to define the potential reasons for early ...
Ariza-Gracia, Miguel Á., Sánchez-García, Alicia, Ariza-Gracia, Miguel Ángel, Molina-Martin, Ainhoa, Piñero, David P, Piñero, David P.   +5 more
core   +1 more source

Current State and Future Trends: A Citation Network Analysis of the Orthokeratology Field [PDF]

, 2019
Introduction. Citation network analysis is a powerful tool that allows for a visual and objective representation of the past, present, and potential future directions of a research field.
Álvarez Peregrina, Cristina, Sánchez Tena, Miguel Ángel, Sánchez Valverde, José, Villa Collar, César, Cristina Alvarez-Peregrina, Jose Sanchez-Valverde, Cesar Villa-Collar, Miguel Angel Sanchez-Tena   +7 more
core   +1 more source