Results 81 to 90 of about 41,303 (288)

Axial length changes during accommodation in myopes and emmetropes [PDF]

, 2010
Purpose: To investigate the influence of accommodation upon axial length (and a comprehensive range of ocular biometric parameters), in populations of young adult myopic and emmetropic subjects.
Cheong, Shiow Huoy, Collins, Michael, Read, Scott, Woodman, Emily   +3 more
core   +1 more source

Quantitative assessment of relative peripheral refraction in children with different refractive statuses and its associations with ocular biometry

Frontiers in Medicine
BackgroundThis study aimed to evaluate the distribution of relative peripheral refraction (RPR) and its relationship with ocular biometry in Chinese children of different refractive statuses.MethodsThis study included 309 participants aged 4 to 14 years ...
Chaoying Ye, Chaoying Ye, Chaoying Ye, Xingxue Zhu, Xingxue Zhu, Xingxue Zhu, Yangfan Xu, Yangfan Xu, Yangfan Xu, Yuliang Wang, Yuliang Wang, Yuliang Wang, Yujia Liu, Yujia Liu, Yujia Liu, Jianmin Shang, Jianmin Shang, Jianmin Shang, Xiaomei Qu, Xiaomei Qu, Xiaomei Qu   +20 more
doaj   +1 more source

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

Advanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin, Wenhao Wang, Thomas Caiwei Tan, Abhishek Kumar, Ridong Jia, Nikhil Navaratna, Ranjan Singh, Lijuan Xie   +7 more
wiley   +1 more source

Repeatability of push-up and push-down methods in the measure of accommodation amplitude [PDF]

, 2017
La mesura de l’amplitud d’acomodació és una pràctica molt habitual en optometria. La majoria de professionals coincideixen en que els mètodes push-up i push-down són els més utilitzats als exàmens visuals degut al fet que són mètodes ràpids, fàcils i ...
Duatis Alcoverro, Cinta
core  

The Accuracy of Accredited Glaucoma Optometrists in the Diagnosis and Treatment Recommendation for Glaucoma [PDF]

, 2007
Background/aims: To compare the diagnostic performance of accredited glaucoma optometrists (AGO) for both the diagnosis of, and decision to treat glaucoma with that of routine hospital eye care against a reference standard of expert opinion, i.e ...
Azuara-Blanco, Augusto, Burr, Jennifer Margaret, MacLennan, Graeme Stewart, McPherson, Stephen, Thomas, Ruth Elizabeth   +4 more
core   +3 more sources

Ocular Biometry and Refraction in Mongolian Adults

Investigative Opthalmology & Visual Science, 2004
To describe the variation in ocular biometry and its association with refraction in adult Mongolians.The study included 1800 subjects, aged 40 years or more, who were selected in two Mongolian provinces-Hövsgöl and Omnögobi-to participate in this population survey.
Sanjeewa, Wickremasinghe, Paul J, Foster, Davaatseren, Uranchimeg, Pak Sang, Lee, Joe G, Devereux, Poul Helge, Alsbirk, David, Machin, Gordon J, Johnson, Jamyanjav, Baasanhu   +8 more
openaire   +2 more sources

Ice Lithography: Recent Progress Opens a New Frontier of Opportunities

Advanced Functional Materials, EarlyView.
This review focuses on recent advancements in ice lithography, including breakthroughs in compatible precursors and substrates, processes and applications, hardware, and digital methods. Moreover, it offers a roadmap to uncover innovation opportunities for ice lithography in fields such as biological, nanoengineering and microsystems, biophysics and ...
Bingdong Chang, Gwendoline A. E. Anand, Rubaiyet Haque, Dylan A. Chiaro, Mona Sharma, Andrew R. Williams, Frank Niklaus, Daryl W. Yee, Gavin M. King, Anpan Han   +9 more
wiley   +1 more source

Ultrasound and phakometry measurements of the primate eye Technical report, Aug. 1965 [PDF]

Ultrasonic testing and phakometry measurements of primate ...
Farrer, D. N., Leary, G. A., Young, F. A.   +2 more
core   +1 more source

Optical Mineralogy [PDF]

, 1997
This resource is a 43 page pdf document on the principals of optical mineralogy. Topics include light, the polarizing light microscope, the refractive index, optical classes and indicatrix theory, the relationship of optical properties to crystal ...
Mickey Gunter
core  

Recovery of corneal irregular astigmatism, ocular higher-order aberrations, and contrast sensitivity after discontinuation of overnight orthokeratology [PDF]

, 2008
Aims: To examine prospectively the recovery of various parameters after discontinuation of overnight orthokeratology.Methods: Seventeen subjects undergoing orthokeratology for 12 months were examined. Refraction, corneal topography, wavefront aberrometry,
Hiraoka T, Ishii Y, Okamoto C, Okamoto F, Oshika T, 大鹿 哲郎, 岡本 史樹, 平石 典子   +7 more
core   +1 more source