Results 31 to 40 of about 614,430 (354)
The Human Eye and Adaptive Optics [PDF]
Scientists have rapidly taken advantage of adaptive optics (AO) technology for the study of the human visual system. Vision, the primary human sense, begins with light entering the eye and the formation of an image on the retina (Fig 1), where light is transformed into electro-chemical impulses that travel towards the brain.
Fuensanta A Vera-Diaz, Nathan Doble
openaire +3 more sources
Motion transparency : depth ordering and smooth pursuit eye movements [PDF]
When two overlapping, transparent surfaces move in different directions, there is ambiguity with respect to the depth ordering of the surfaces. Little is known about the surface features that are used to resolve this ambiguity.
Schütz, Alexander C.
core +1 more source
Simultaneous recordings of ocular microtremor and microsaccades with a piezoelectric sensor and a video-oculography system [PDF]
Our eyes are in continuous motion. Even when we attempt to fix our gaze, we produce so called “fixational eye movements”, which include microsaccades, drift, and ocular microtremor (OMT).
Michael B. McCamy+10 more
doaj +2 more sources
Surgical treatment of a rare case of bilateral ptosis due to localized ocular amyloidosis [PDF]
We describe a rare case of a 31-year old woman with bilateral ptosis due to localized amyloidosis. She referred a nine-year history of ptosis and surgical treatment with frontalis suspension three years previously.
ABDOLRAHIMZADEH, SOLMAZ+4 more
core +1 more source
Adaptive features of aquatic mammals' eye [PDF]
AbstractThe eye of aquatic mammals demonstrates several adaptations to both underwater and aerial vision. This study offers a review of eye anatomy in four groups of aquatic animals: cetaceans (toothed and baleen whales), pinnipeds (seals, sea lions, and walruses), sirenians (manatees and dugongs), and sea otters.
Alla M. Mass, Alexander Ya. Supin
openaire +3 more sources
Preoperative prism adaptation test in normosensoric strabismus [PDF]
In 19 patients with normosensoric esotropia, the squint angles measured with the alternate cover test were compared with those after prolonged prismatic correction of the squint angle and with those after prolonged occlusion of one eye.
A Jampolsky+10 more
core +2 more sources
Psychological aspects rehabilitation of patients with anophthalmia
This work deals with the psychological rehabilitation of patients with anophthalmia having eye protesis as the main role on the problem. Stages of psychological reaction after eye lost and also the difficulties of adaptation of fellows with both eyesight
E. N. Verigo+2 more
doaj +3 more sources
Evidence for Perceptual “Trapping” and Adaptation in Multistable Binocular Rivalry [PDF]
When a different pattern is presented to each eye, the perceived image spontaneously alternates between the two patterns (binocular rivalry); the dynamics of these bistable alternations are known to be stochastic. Examining multistable binocular rivalry (
Grabowecky, Marcia, Suzuki, Satoru
core +1 more source
Rapid visual adaptation persists across saccades
Summary: Neurons in the visual cortex quickly adapt to constant input, which should lead to perceptual fading within few tens of milliseconds. However, perceptual fading is rarely observed in everyday perception, possibly because eye movements refresh ...
Carolin Hübner, Alexander C. Schütz
doaj
Visual adaptation that can autonomously adjust the response to light stimuli is a basic function of artificial visual systems for intelligent bionic robots.
Weizhen Liu+9 more
doaj +1 more source