Fixation — may refer to the following:In science: *Fixation (psychology), the state in which an individual becomes obsessed with an attachment to another human, an animal, or an inanimate object *Fixation (visual) maintaining the gaze in a constant… … Wikipedia
fixation point — n the point in the visual field that is fixated by the two eyes in normal vision and for each eye is the point that directly stimulates the fovea of the retina … Medical dictionary
visual axis — n LINE OF VISION * * * the line between the fovea centralis retinae and the point of fixation, intersecting the optic axis as it passes through the nodal point; it is sometimes defined as the line extending from the fovea to the nodal point and… … Medical dictionary
Visual cortex — Brain: Visual cortex View of the brain from behind. Red = Brodmann area 17 (primary visual cortex); orange = area 18; yellow = area 19 … Wikipedia
Visual perception — In psychology, visual perception is the ability to interpret information from visible light reaching the eyes. The resulting perception is also known as eyesight, sight or vision. The various physiological components involved in vision are… … Wikipedia
Visual system — The visual system includes the eyes, the connecting pathways through to the visual cortex and other parts of the brain. The illustration shows the mammalian system. The visual system is the part of the central nervous system which enables… … Wikipedia
Visual acuity — 20/15 and 20/15 vision redirect here. For other uses, see 2020 (disambiguation). Typical Snellen chart used for visual acuity testing. Visual acuity (VA) is acuteness or clearness of vision, which is dependent on the sharpness of the retinal… … Wikipedia
fixation — 1. The condition of being firmly attached or set. 2. In histology, the rapid killing of tissue elements and their preservation and hardening to retain as nearly as possible the same relations they had in the living body. SYN: fixing. 3. In… … Medical dictionary
visual allachaesthesia — Also known as optical allachaesthesia, optical alloaesthesia, and fata morgana of the visual sphere. The first three expressions are indebted to the Greek words attache (elsewhere) and aisthanesthai (to notice, to perceive). They translate… … Dictionary of Hallucinations
Meridian (perimetry, visual field) — This article is about the perimetry concept. For other uses of the word, see Meridian. Meridian is used in perimetry and in specifying visual fields. According to IPS Perimetry Standards 1978 (2002): Perimetry is the measurement of [an observer… … Wikipedia
