Medical dictionary. 2011.
vernier acuity — ver·ni·er acuity vər nē ər n the aspect of visual acuity that involves the ability to detect the alignment or lack of alignment of the two parts of a broken line (as in reading a vernier scale) compare GRATING ACUITY, HYPERACUITY, STEREOACUITY *… … Medical dictionary
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
stereoacuity — ste·reo·acui·ty .ster ē ō ə kyü ət ē, .stir n, pl ties the ability to detect differences in distance using stereoscopic cues that is measured by the smallest difference in the images presented to the two eyes that can be detected reliably compare … Medical dictionary
hyperacuity — hy·per·acu·ity .hī pə rə kyü ət ē n, pl ities greater than normal acuteness esp. of a sense specif visual acuity that is better than twenty twenty compare GRATING ACUITY, STEREOACUITY, VERNIER ACUITY … Medical dictionary
eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… … Universalium
Evoked potential — Intervention MeSH D005071 An evoked potential (or evoked response ) is an electrical potential recorded from the nervous system of a human or other animal following presentation of a … Wikipedia
musical sound — Introduction any tone with characteristics such as controlled pitch and timbre. The sounds are produced by instruments in which the periodic vibrations can be controlled by the performer. That some sounds are intrinsically musical,… … Universalium
Optics — For the book by Sir Isaac Newton, see Opticks. Optical redirects here. For the musical artist, see Optical (artist). Optics includes study of dispersion of light. Optics is the branch of … Wikipedia
Aerial perspective — or atmospheric perspective is the effect on the appearance of an object by the atmosphere between it and a viewer (or the technique of depicting this effect in a work of art, such as a landscape painting). As the distance between an object and a… … Wikipedia
ostariophysan — ▪ fish Introduction any of about8,000 species of bony fishes (bony fish) belonging to a group that includes the majority of freshwater fishes throughout the world. Familiar representatives of this group are the minnows (minnow), suckers (sucker) … Universalium
