Results 111 to 120 of about 3,261,865 (370)
Prevalence of refractive error in Europe: the European Eye Epidemiology (E3) Consortium
European Journal of Epidemiology, 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 (E3 ...
K. Williams +33 more
semanticscholar +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
Spectacle wearing in children randomised to ready-made or custom spectacles, and potential cost savings to programmes: study protocol for a randomised controlled trial. [PDF]
, 2016 BACKGROUND: Uncorrected refractive errors are the commonest cause of visual impairment in children, with myopia being the most frequent type. Myopia usually starts around 9 years of age and progresses throughout adolescence.
Evans, Jennifer +3 more
core +2 more sources
Toughness of Confined Auxetic Foams
Advanced Engineering Materials, EarlyView.Auxetic (negative Poisson's ratio) materials offer benefits such as impact mitigation, thermal insulation, vibration damping, and reduced shear strain, although their fracture mechanics are largely unexplored. This study investigates damage initiation and propagation in confined re‐entrant auxetic foams from polyurethane via experimental ...
Adrianos E. F. Athanasiadis +3 more
wiley +1 more source
BMC Ophthalmology, 2016 BackgroundWe examined the effect of surgical repair on the pattern of refractive errors in Korean patients with congenital blepharoptosis.MethodsWe reviewed the clinical records of 54 patients with congenital blepharoptosis who attended our hospital from
Ji-Sun Paik +3 more
semanticscholar +1 more source
A retinoscopic survey of 333 horses and ponies in the UK [PDF]
, 2014 Introduction: Ophthalmic examination in the horse is generally limited to crude assessment of vision and screening for ocular lesions. The refractive state of equine eyes and the potential impact on vision and performance requires further ...
Chung +38 more
core +1 more source
Reliable Tissue Grasping in Robotic Minimally Invasive Surgery Enabled by Optical‐Based Slip Sensing
Advanced Engineering Materials, EarlyView.An optical‐based slip sensing method using a complementary metal–oxide–semiconductor image sensor with a built‐in infrared light emitting diode enables real‐time detection of tissue slippage—including displacement, direction, and speed—in robotic minimally invasive surgery.
Minjae Lee, Amy Kyungwon Han
wiley +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
Advanced Engineering Materials, EarlyView.A powerful electronic control system enables a dielectric elastomer pump to operate at resonance, matching conventional pump performance. Using self‐sensing to reconstruct load pressure dynamically, the adaptive control adjusts resonance frequency accordingly.
Matthias Baltes +3 more
wiley +1 more source
A spatial refractive index sensor using whispering gallery modes in an optically trapped microsphere [PDF]
, 2006 We propose the use of an optically trapped, dye doped polystyrene microsphere for spatial probing of the refractive index at any position in a fluid. We demonstrate the use of the dye embedded in the microsphere as an internal broadband excitation source,
Mosk, Allard +3 more
core +3 more sources