Results 1 to 10 of about 126,798 (195)
Effect of Computer Tasks in Straight Gaze on Corneal Topographic Indices
Journal of Ophthalmic & Vision ResearchPurpose: To investigate the effect of the near visual task of movie-watching in the straight gaze position on corneal topographic parameters. Methods: Thirty myopic young adults with an average age of 25.10 ± 4.13 years were recruited for the study.
Zeinab Tanhaye Shamsabady +2 more
doaj +1 more source
Prevalence of Ocular Morbidity Among School Adolescents of Gandhinagar District, Gujarat [PDF]
, 2011 Objective: To study the prevalence of ocular morbidity (abnormal condition) and various factors affecting it among school attending adolescents. Methods: A cross-sectional study was conducted to study abnormal ocular conditions like refractive errors ...
Chudasama, Rajesh K +4 more
core +1 more source
Retinal neurovascular assessment and choroidal vascularity index in patients with keratoconus
Scientific ReportsThis study aims to evaluate the macular and the optic nerve head thickness and vascular profiles in KC patients and compare them with two groups of healthy emmetrope and subjects with myopic-astigmatism. This cross-sectional study was conducted at Khatam-
Javad Sadeghi +7 more
doaj +1 more source
Uncorrected refractive error [PDF]
British Journal of Ophthalmology, 2006 We need to act now to eliminate preventable blindness by the year 2020 In 1997, the World Health Organization set itself an ambitious goal to eliminate avoidable blindness in the world by 2020, with one of the five main priorities being refractive errors.1,2 A recent review of the impact of Vision 2020 on preventable blindness, other than uncorrected ...
openaire +1 more source
The use of terrestrial laser scanning for measurements in shallow-water : correction of the 3D coordinates of the point cloud [PDF]
, 2015 Although acoustic measurements are a wide-spread technique in the field of bathymetry, most systems require a water depth of at least 2 m. Furthermore, mapping shallow-water depths with acoustic techniques is expensive and complicated.
De Wulf, Alain +4 more
core +1 more source
Effect of finite terms on the truncation error of Mie series
, 2012 The finite sum of the squares of the Mie coefficients is very useful for addressing problems of classical light scattering. An approximate formula available in the literature, and still in use today, has been developed to determine a priori the number of
Neves, Antonio Alvaro Ranha +1 more
core +1 more source
Ophthalmic disorders among students of School for the Deaf [PDF]
, 2012 Aim: This study aimed at determining the prevalence and pattern of ophthalmic disorders amongstudents of School for the Deaf, Akure, Ondo State, Nigeria.Methodology: This is a cross sectional descriptive study was conducted in October, 2011 aspart of ...
O, Adeniji A +2 more
core +1 more source
A plasmonic accuracy biosensor using a single laser diode [PDF]
, 2016 A theoretical model was implemented to obtain the total specular reflection of a variable external multicavity for out of normal incidence and different polarisations.
Bañares Palacios, Paula
core +1 more source
Equations for filling factor estimation in opal matrix
, 2005 We consider two equations for the filling factor estimation of infiltrated zinc oxide (ZnO) in silica (SiO_2) opal and gallium nitride in ZnO opal. The first equation is based on the effective medium approximation, while the second one - on Maxwell ...
Abrarov +34 more
core +1 more source
Corneal and Ocular Aberrations: A Comparative Study of Hyperopic, Emmetropic, and Myopic Eyes
Journal of Ophthalmic & Vision ResearchPurpose: To investigate differences in corneal and ocular aberrations between hyperopic, emmetropic, and myopic eyes. Methods: This cross-sectional study included 84 eyes from 84 healthy participants (age range 18-35 years), who were equally divided ...
Amir Golmakani +3 more
doaj +1 more source