Results 21 to 30 of about 252,342 (303)
Dynamic profile of ocular refraction in pediatric cataract patients after lens surgeries [PDF]
International Journal of Ophthalmology, 2019 AIM: To study the change in ocular refraction in patients with pediatric cataracts (PCs) after lens extraction. METHODS: A total of 1258 patients who were undergoing cataract extraction with/without intraocular lens (IOL) implantation were recruited ...
Zhen-Zhen Liu +16 more
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Refractive errors in premature infants with retinopathy of prematurity after anti-vascular endothelial growth factor (anti-VEGF) therapy [PDF]
Vojnosanitetski Pregled, 2017 Background/Aim. Retinopathy of prematurity (ROP) is a vasoproliferative retinopathy which affects the blood vessels of the retina during its development. The aim of this study was to evaluate the incidence and the degree of refractive errors in premature
Vujanović Milena S. +7 more
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, 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
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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 +15 more
doaj +1 more source
PLoS ONE, 2022 This prospective observational study aimed to evaluate the ocular biometry of Japanese people through a multicenter approach. The uncorrected and corrected distance visual acuity (UDVA and CDVA, respectively) in the log minimum angle of resolution ...
Takushi Kawamorita +14 more
doaj +3 more sources
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 +3 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 +3 more
doaj +1 more source
Ray-optical refraction with confocal lenslet arrays [PDF]
, 2008 Two parallel lenslet arrays with focal lengths f1 and f2 that share a common focal plane (that is, which are separated by a distance f1+f2) can refract transmitted light rays according to Snell's law, but with the 'sin's replaced with 'tan's. This is the
Courtial, J.
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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 +4 more
core +1 more source
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 +3 more
doaj +1 more source