Results 241 to 250 of about 5,757 (272)

Introduction a l’optique métaxiale Première partie : Diffraction métaxiale dans un espace homogène : Trilogie structurale, dioptre sphérique

, 1978
Georges Bonnet
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Prevalence of myopia and uncorrected myopia among 721 032 schoolchildren in a city-wide vision screening in southern China: the Shantou Myopia Study

British Journal of Ophthalmology, 2022
Aims To explore the prevalence and risk factors for myopia and uncorrected myopia in schoolchildren in southern China. Methods The government-led Shantou Myopia Study was conducted from September 2020 to June 2021.
Hongxi Wang, Yuancun Li, K. Qiu, Riping Zhang, Xuehui Lu, Li Luo, Jianwei Lin, Yanlin Lu, Dan Zhang, Peiting Guo, Yong Yang, Liu Jing, Yingzi Huang, Qian Ma, Ruiqing Zhou, Y. Ou, Quan Chen, Youming Zhou, Dandan Deng, Can Li, J. Yam, L. J. Chen, C. Pang, Mingzhi Zhang   +23 more
semanticscholar   +1 more source

Visual fatigue induced by watching virtual reality device and the effect of anisometropia

Ergonomics, 2021
The effect of small anisometropia on visual fatigue when using virtual reality (VR) devices was investigated. Participants (n = 34) visited three times.
Sang Hyeok Lee, Martha A. Kim, Hyosun Kim, Choul-Yong Park   +3 more
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Short-term choroidal changes as early indicators for future myopic shift in primary school children: results of a 2-year cohort study

British Journal of Ophthalmology
Background To assess predictive value of short-term choroidal changes for future myopic shift in children. Methods 577 eyes of 289 primary school children were prospectively followed for 2 years.
Hao Wu, Mengqi Liu, Yuanyuan Wang, Xiang Li, Weihe Zhou, Haoer Li, Zhu Xie, Pengqi Wang, Tingting Zhang, Wei Qu, Jing Huang, Yunpeng Zhao, Jiefang Wang, Sen Zhang, Jia Qu, Cong Ye, Xiangtian Zhou   +16 more
semanticscholar   +1 more source

Macular choroidal thickness in keratoconus

Clinical and experimental optometry
Clinical relevance Expanding practitioner knowledge regarding potential changes in ocular structure of keratoconic eyes will improve the eye care practice and patient management.
Ali Abbasi Mehrabadi, Javad Sadeghi, Nasser Shoeibi, Javad Heravian Shandiz, Mehrdad Motamed Shariati, Akbar Derakhshan, N. Yazdani   +6 more
semanticscholar   +1 more source

Can Holographic Lenses Provide Vision Correction? Modelling the Limitations

Frontiers in Optics + Laser Science 2024 (FiO, LS)
Focus/defocus Holographic Optical Lenses were modelled to determine their limitations for vision refractive error correction. The parameters of holographic thickness, spatial frequency, refractive index modulation and diffraction efficiency were modelled
Matthew Hellis, Jorge Lasarte, Suzanne Martin, Matthew Sheehan, Kevin Murphy   +4 more
semanticscholar   +1 more source

Difference between both eyes in the calculation of the dioptre power of the intraocular lens in a series of 7994 patients.

Archivos de la Sociedad Española de Oftalmología, 2022
F. Pólit Huerta, A. F. Pólit Hoyos, J. Pólit Hoyos, N. Molano-González   +3 more
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Myopia control: why each dioptre matters

Contact lens & anterior eye, 2019
M. Bullimore
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Outcomes of manual small-incision cataract surgery using standard 22 dioptre intraocular lenses at Nkhoma Eye Hospital, Malawi

International ophtalmology, 2012
J. Sherwin, W. Dean, Isabelle Schaefers, P. Courtright, N. Metcalfe   +4 more
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Investigation on dioptre meter with digital display and projection

International Conference on Computer Application and System Modeling, 2010
Zhang Qing
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