Results 41 to 50 of about 129,670 (294)
Indian Journal of Ophthalmology, 2012 Global estimates indicate that more than 2.3 billion people in the world suffer from poor vision due to refractive error; of which 670 million people are considered visually impaired because they do not have access to corrective treatment.
Kovin S Naidoo, Jyoti Jaggernath
doaj +1 more source
Cogent Medicine, 2020 Refractive errors lead to visual impairment if they are uncorrected. The prevalence of uncorrected refractive errors in children is considerably high, even though they can be easily corrected with spectacles.
Aldiana Halim +6 more
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Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.By fabricating and covalently assembling gelatin methacryloyl (GelMA) porous microgels, a new class of granular hydrogel scaffolds with hierarchical porosity is developed. These scaffolds have a significantly higher void fraction than their counterparts made up of nonporous microgels, enhancing cell recruitment and tissue integration. This research may
Alexander Kedzierski +9 more
wiley +1 more source
Journal of Nobel Medical College, 2020 Background: Refractive errors are a major cause of defective vision in all age groups. Although contact lens and refractive surgery are popular, still spectacles are the traditional and most widely used method of optical correction. The main objective of
Puspa Giri, Gopal Bhandari, Ranjeet Sah
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Impact of Ramadan fasting on intraocular pressure, visual acuity and refractive errors [PDF]
, 2011 Introduction: Fasting evidently influences a variety of physiological parameters that can impact the ocular system. Among these modifications are alterations in insulin secretion, sympathetic activity, free fatty acids, lipid profile, melatonin ...
Afarid, M +7 more
core
A fast high-order solver for problems of scattering by heterogeneous bodies [PDF]
, 2003 A new high-order integral algorithm for the solution of scattering problems by heterogeneous bodies is presented. Here, a scatterer is described by a (continuously or discontinuously) varying refractive index n(x) within a two-dimensional (2D) bounded ...
Bruno, Oscar P., Sei, Alain
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Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications
Advanced Functional Materials, EarlyView.Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai +8 more
wiley +1 more source
The Association of Central corneal thickness with Intra-ocular Pressure and Refractive Error in a Nigerian Population [PDF]
, 2008 The purpose of this study was to determine the variation of central corneal thickness (CCT) with intraocular pressure (IOP) and spherical equivalent refractive error.
Iyamu, Eghosasere, Memeh, Misan
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Efficient interface conditions for the finite difference beam propagation method [PDF]
, 1992 It is shown that by adapting the refractive indexes in the vicinity of interfaces, the 2-D beam propagation method based on the finite-difference (FDBPM) scheme can be made much more effective. This holds especially for TM modes propagating in structures
Hoekstra, H.J.W.M. +2 more
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Advanced Functional Materials, EarlyView.This study presents a capacitive hydrogen sensor with a simple structure and process. Sonication‐induced Pd nanogaps modulate the effective electrode area in response to hydrogen concentration, resulting in capacitance changes within a range predefined by physical parameters.
Sang‐kil Lee +9 more
wiley +1 more source