Results 81 to 90 of about 19,525 (203)
Rapid Assessment of Refractive Error, Presbyopia, and Visual Impairment and Associated Quality of Life in Nampula, Mozambique [PDF]
, 2015 Introduction: Uncorrected refractive error is the leading cause of visual impairment worldwide and leads to an impaired quality of life. This study was designed to determine the prevalence of uncorrected refractive error and presbyopia, to assess ...
Chinanyi, Farai +6 more
core +1 more source
, 2006 AIM: To estimate the prevalence and causes of blindness and visual impairment in the population aged 40 years and over in Muyuka, a rural district in the South West Province of Cameroon.
Befidi-Mengue, R +4 more
core +2 more sources
Implications of Atmospheric Differential Refraction for Adaptive Optics Observations [PDF]
, 2002 Many adaptive optics systems operate by measuring the distortion of the wavefront in one wavelength range and performing the scientific observations in a second, different wavelength range.
Roe, Henry G.
core +2 more sources
P‐T‐t‐d Evolution of Low‐Grade Metamorphic Xenotime, Eastern Alps (Austria)
Terra Nova, Volume 38, Issue 1, Page 65-76, February 2026.ABSTRACT In situ LA‐ICP‐MS U‐Pb dating of xenotime was used to establish the age of low‐grade metamorphism in Permian metasediments of the Austroalpine Unit (Eastern Alps, Austria). Complexly zoned xenotime in chloritoid‐bearing metasedimentary samples possesses distinct MREE‐rich domains. In the eastern sample, this domain yielded a date of c. 135 Ma,
M. S. Hollinetz +4 more
wiley +1 more source
A proposed rapid methodology to assess the prevalence and causes of blindness and visual impairment.
, 2006 PURPOSE: To determine whether a sample of the 50-year-old and above population would provide comparable information to a total population-based survey. METHODS: In 1996, a national eye survey of the total population in The Gambia was undertaken and the ...
Dineen, Brendan +2 more
core +1 more source
Full correction of scattering effects by using the radiative transfer theory for improved quantitative analysis of absorbing species in suspensions [PDF]
, 2013 Sample-to-sample photon path length variations that arise due to multiple scattering can be removed by decoupling absorption and scattering effects by using the radiative transfer theory, with a suitable set of measurements.
Steponavicius, Raimundas +1 more
core +1 more source
Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.Abstract Whitecapping is the dominant, but poorly understood, mechanism of ocean wave energy dissipation. The amount of wave energy lost due to whitecapping can only be estimated indirectly, from observations of related quantities. High uncertainties associated with observation‐based estimates hinder validation of whitecapping parameterizations for ...
A. Herman +2 more
wiley +1 more source
Driving Innovation: The Impact of National Health Policies on Optometry Research in East Asia
The International Journal of Health Planning and Management, Volume 41, Issue 1, Page 37-46, January 2026.ABSTRACT This study examines the optometric research landscape in three East Asian countries—China, Japan, and Korea—analysing how research trends align with each country's national health strategies. By evaluating published articles and reviews from national journals between 2006 March 2025, we identify key areas of focus, including paediatric ...
Jihye Ahn, Moonsung Choi
wiley +1 more source
Medical Physics, Volume 53, Issue 1, January 2026.Abstract Background Accurate small‐field (SF) dosimetry is essential for Magnetic Resonance‐guided Radiation Therapy (MRgRT), particularly for stereotactic treatments. The static magnetic field (B‐field) alters detector response, necessitating detector‐specific correction factors kB,Qf,f$k_{B,Q}^{f,f}$ to ensure dosimetric accuracy.
Muhammed Emin Bedir +2 more
wiley +1 more source
Prevalence of visual impairment and estimation of refractive errors among school children in Kakamega, Kenya [PDF]
International Journal of OphthalmologyAIM: To investigate the prevalence of visual impairment (VI) and provide an estimation of uncorrected refractive errors in school-aged children, conducted by optometry students as a community service. METHODS: The study was cross-sectional.
Isabel Signes-Soler +4 more
doaj +1 more source