Results 31 to 40 of about 1,111,930 (322)
Vision measurement and psychophysical tests [PDF]
Vision measurement is the basis for the study and standardization of visual sciences. Measurement of visual acuity has great value for research and for clinical practice.
Carvalho, Luis Alberto Vieira De+2 more
core +2 more sources
ACQUIRED COLOR VISION DEFICIENCY IN PARKINSON’S DISEASE [PDF]
Acquired color deficiency in the tritan axis in Parkinson’s disease has already been reported, manifesting itself as impaired performance in various visual tasks. However, its clinical significance has always been controversial.
S.A. Tabassi, S.G. Sepanlou J. Lotfi
doaj +2 more sources
Color vision in civil aviation
Color vision deficiency (CVD) is a condition that results in individuals being unable to distinguish differences between certain colors. Occupational color vision standards were introduced in aviation in 1919 by The Aeronautical Commission of the ...
Atul K Singh+3 more
doaj +1 more source
Printing of wirelessly rechargeable solid-state supercapacitors for soft, smart contact lenses with continuous operations [PDF]
Recent advances in smart contact lenses are essential to the realization of medical applications and vision imaging for augmented reality through wireless communication systems.
Ahn, David B.+6 more
core +2 more sources
Purpose: The purpose of this study was to examine role of improved distance and near best-corrected visual acuity (DBCVA and NBCVA) with use of magnification devices to enhance stereopsis in low vision (LV) subjects having retinal diseases. Methods: In a
Punita Kumari Sodhi+4 more
doaj +1 more source
Multispectral Analysis of Color Vision Deficiency Tests
Color deficiency tests are usually produced by means of polygraphy technologies and help to diagnose the type and severity of the color deficiencies. Due to different factors, as lighting conditions or age of the test, standard characteristics of these ...
Sergejs FOMINS, Maris OZOLINSH
doaj +1 more source
Early forest fire detection by vision-enabled wireless sensor networks [PDF]
Wireless sensor networks constitute a powerful technology particularly suitable for environmental monitoring. With regard to wildfires, they enable low-cost fine-grained surveillance of hazardous locations like wildland-urban interfaces.
Carmona Galán, Ricardo+3 more
core +1 more source
Uncertainty and accuracy of vision-based tracking concerning stereophotogrammetry and noise-floor tests [PDF]
This work proposes a systematic assessment of stereophotogrammetry and noise-floor tests to characterize and quantify the uncertainty and accuracy of a vision-based tracking system.
Luna Ngeljaratan, Mohamed A. Moustafa
doaj +1 more source
Color space distortions in patients with type 2 diabetes mellitus [PDF]
Color vision impairment was examined in patients with type 2 diabetes mellitus (DM2) without retinopathy. We assessed the type and degree of distortions of individual color spaces. DM2 patients (n = 32), and age-matched controls (n = 20)were tested using
Bimler, David L.+7 more
core +1 more source
Clinical validation of a cross-platform digital visual acuity measurement system [PDF]
Objective: To validate visual acuity measurements using a cross-platform system in an ophthalmological setting. Methods: Visual acuity was assessed at a distance of 5m using two different modalities: printed and digital optotypes.
Juan Carlos Costa+2 more
doaj +1 more source