Results 21 to 30 of about 238,064 (305)

Identification of ocular refraction based on deep learning algorithm as a novel retinoscopy method

BioMedical Engineering OnLine, 2022
Background The evaluation of refraction is indispensable in ophthalmic clinics, generally requiring a refractor or retinoscopy under cycloplegia. Retinal fundus photographs (RFPs) supply a wealth of information related to the human eye and might provide ...
Haohan Zou, Shenda Shi, Xiaoyan Yang, Jiaonan Ma, Qian Fan, Xuan Chen, Yibing Wang, Mingdong Zhang, Jiaxin Song, Yanglin Jiang, Lihua Li, Xin He, Vishal Jhanji, Shengjin Wang, Meina Song, Yan Wang   +15 more
doaj   +1 more source

Critique of optical negative refraction superlensing [PDF]

, 2011
Has the ten-year old quest for the optical superlens, based on Veselago’s hypothesis of negative refraction, been a chimera? We argue that Pendry’s alternative prescription of the silver superlens is nothing more than an application of the natural ...
Christou, George, Christos Mias, Mias, Christos, George Christou   +3 more
core   +1 more source

Prevalence of refractive error in Europe: the European Eye Epidemiology (E(3)) Consortium. [PDF]

, 2015
To estimate the prevalence of refractive error in adults across Europe. Refractive data (mean spherical equivalent) collected between 1990 and 2013 from fifteen population-based cohort and cross-sectional studies of the European Eye Epidemiology (E(3 ...
Cumberland, P.M., Gabriëlle H. S. Buitendijk, Erke, MG, Astrid Fletcher, Kuijpers, Robert W.A.M., Wolfram, C, Kuijpers, Robert WAM, Cougnard-Grégoire, Audrey, Vingerling, Johannes R., Erke, M.G., Christian Wolfram, Fletcher, Astrid, Kuijpers, R.W., Hammond, Christopher J., Mahroo, Omar, Verhoeven, Virginie, Hogg, Ruth, Wolfram, Christian, Kuijpers, Robert W A M, Luben, RN, Rahi, Jugnoo, Klaver, Caroline C. W., Bertelsen, G., van Duijn, C.M., Anastasopoulos, Eleftherios, Fletcher, A., Rahi, J.S., Robert W. A. M. Kuijpers, Ruth Hogg, Bertelsen, Geir, Hanno, Therese von, Mirshahi, A, Verhoeven, V.J., von Hanno, T, Mahroo, O, Hammond, Christopher J, von Hanno, Therese, Norbert Pfeiffer, Vingerling, J.R., Christopher J. Hammond, Albert Hofman, Klaver, Caroline C W, Cumberland, Phillippa, Hofman, Bert, Hammond, C.J., Verhoeven, Virginie; id_orcid, Meitinger, T, Maja Gran Erke, Fletcher, A, Hogg, Ruth; id_orcid, Cumberland, P, Gieger, Christian, Hammond, CJ, Fotis Topouzis, Creuzot-Garcher, C., Paul J. Foster, Wolfram, C., Khawaja, Anthony P, Buitendijk, Gabriëlle H S, Meitinger, T., Hofman, A., Audrey Cougnard-Grégoire, Buitendijk, G.H., Creuzot Garcher, Catherine, Gieger, C, Buitendijk, Gabriëlle H.S., Delcourt, C, Omar Mahroo, Cornelia M. van Duijn, Bron, A., Woolf, Katie Williams; id_orcid, René Höhn, Bertelsen, G, von Hanno, T., Jean-François Korobelnik, Topouzis, F., Jean-François Dartigues, Mirshahi, A., Dartigues, J.F., Delcourt, C., Korobelnik, Jean-François, Williams, Katie M., Korobelnik, J.F., Gieger, C., Christian Gieger, Vingerling, Johannes R, Williams, KM, van Duijn, Cornelia M., Topouzis, F, Dartigues, JF, Verhoeven, Virginie J.M., Klaver, C.C., Luben, R.N., Khawaja, Anthony P., Geir Bertelsen, Vingerling, Hans, Luben, Robert N, Korobelnik, JF, Höhn, René, Alireza Mirshahi, Bron, A, Pfeiffer, Norbert, van Duijn, Cornelia, Anastasopoulos, E, Hogg, R, Buitendijk, Gabriëlle, Mirshahi, Alireza, Erke, Maja Gran, Virginie J. M. Verhoeven, Cécile Delcourt, Duijn, Cornelia, Klaver, Caroline CW, Creuzot-Garcher, C, Creuzot-Garcher, Catherine, Hofman, Albert, Hohn, R, Foster, PJ, Anthony P. Khawaja, Gran Erke, Maja, Meitinger, Thomas, Khawaja, AP, Khawaja, A.P., Robert N. Luben, Verhoeven, Virginie J M, Anastasopoulos, E., Klaver, Caroline, Foster, Paul J, Cougnard-Grégoire, A., Buitendijk, Gabriëlle HS, Jugnoo Rahi, van Duijn, Cornelia M, Dartigues, Jean-François, Kuijpers, Robert, Cougnard-Gregoire, A, Verhoeven, Virginie JM, Topouzis, Fotis, Klaver, Caroline C.W., Thomas Meitinger, Foster, Paul J., Johannes R. Vingerling, Catherine Creuzot-Garcher, Alain Bron, Caroline C. W. Klaver, Höhn, R., Rahi, J, Katie M. Williams, Luben, Robert N., Pfeiffer, N., Pfeiffer, N, Phillippa Cumberland, Mahroo, O., Williams, Katie M, Bron, Alain, Therese von Hanno, Williams, K.M., Delcourt, Cécile, Foster, P.J., Hammond, Chris, Eleftherios Anastasopoulos, Hogg, R.   +159 more
core   +2 more sources

Epidemiological study of ocular trauma in an urban slum population in Delhi, India. [PDF]

, 2008
PURPOSE: To study the epidemiology and clinical profile of victims of ocular trauma in an urban slum population. MATERIALS AND METHODS: This cross-sectional study, conducted on 500 families each in three randomly selected urban slums in Delhi, collected ...
Vats, S, Gupta, SK, Vashist, P, Chandra, M, Gogoi, M, Murthy, GVS   +5 more
core   +1 more source

The effect of viewing distance on subjective refraction assessment [PDF]

Proceedings of the Estonian Academy of Sciences, 2021
Accurate detection of subjective refraction is important to provide patients with the best visual quality. One of the factors affecting detection of subjective refraction is viewing distance.
Alina Kucika, Ilona Rumjanceva, Tatjana Patrova, Aiga Svede   +3 more
doaj   +1 more source

Association of refraction and ocular biometry in highly myopic eyes

, 2021
Clinical relevance: Ocular biometry is key to understanding the determinants of ocular development and pathology changes, especially for the thriving myopic population in Asia. Investigating biometric data in highly myopic eyes within a wide age spectrum
He, Mingguang, Yan, William, Wang, Decai, Chen, Yanxian, Chen, Linxing   +4 more
core   +1 more source

Comparison of keratometric measurements between color light-emitting diode topography and Scheimpflug camera

BMC Ophthalmology, 2019
Background To determine the agreement of measurements between color light-emitting diode corneal topography (Cassini) and Scheimpflug camera keratometry (Pentacam HR).
Xian-Hua Cui, Young-Sik Yoo, Youngju An, Choun-Ki Joo   +3 more
doaj   +1 more source

Ocular disorders in children with learning disabilities in special education schools of Pune, India. [PDF]

, 2011
AIM: The aim was to study and treat ocular disorders in children with learning disabilities (cLDs) and explore associations with their perinatal history.
Gilbert, Clare, Deshpande, Madan, Jitesh Kharat, Hemant Dulera, Kharat, Jitesh, Freya Rao Soneji, Dulera, Hemant, FreyaRao Soneji, Parikshit Gogate, Gogate, Parikshit, Soneji, Freya Rao, Madan Deshpande, Clare Gilbert   +12 more
core   +1 more source

Does central fat distribution reduction after bariatric surgery induce ocular refraction change independent of body mass index?

, 2022
Purpose The effect of body mass index (BMI) and central fat distribution (CFD) reduction after bariatric surgery on ocular refraction is not well established.
AKKAYA TURHAN, SEMRA
core   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source