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Epicapsular stars
Epicapsular stars Remnants left on the eye of the hyaloid canal, from development in the womb.
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Development
The process of growth and differentiation.
Womb
In female mammals, the organ in which the young live and grow before birth.
SIMILAR TERMS--------------------------------------
Epicanthal fold
A fold of skin that comes down across the inner angle (canthus) of the eye. The epicanthal fold is more common in children with Down syndrome and other birth defects than normal children and so is of value in diagnosis. Although some dictionaries state that this eye fold is found in peoples of Asian origin, this is not true. The normal Asian eyefold is continuous with the lower edge of the upper eyelid and actually appears distinctly different than a true epicanthal fold.
Epicardium
The membrane that covers the outside of the heart.
Epicene
Common to both sexes; neither one nor the other.
Epicondylitis
Enthesopathy at humeral epicondyle. May be medial (golfer's elbow) or lateral (tennis elbow).
Epicort
Epicort is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): hydrocortisone.
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Eigengrau
German word for 'intrinsic gray'. When both entire retinal images are stabilized, the observer does not perceive black but a non-descript gray fog.
Emmert's Law
A monocular after-image is located on any surface to which a subject fixates while the after -image is present.x The perceived size of the after-image increases as the perceived distance of the surface increase. Shows that monocular cues may be insufficient to estimate an object's length.
Emmetropia
An eye whose image is focused on the retina, rather than in front of behind it. (As opposed to Hyperopia and Myopia).
End-Inhibition
A property of some cells in the visual cortex which respond strongly to either an edge, a bar or a slit which ends within the receptive field.
End-Stopped cell
An orientation selective cell which is also sensitive to the end of a line or edge, responding to short but not long lines or edge stimuli.
Epicapsular stars
Epipolar line
For a given point in space, this is the line on which the point will fall in the opposite eye. This line is tilted out of the horizontal unless the eyes are fixated on a very distant object.
Equiluminant stimuli
Visual stimuli that vary only in color but not in luminance. Stereopsis and motion perception disappear at equiluminance indicating the presence of separate processing channels for color, motion and stereopsis.
Extrastriate cortex
Region of primate cerebral cortex anterior to striate cortex.
Eyespot
A concentrated patch of photoreceptor cells on the skin present in some species.
Ecchymosis
A purplish patch caused by extravasation of blood into the tissues differing from petechiae only in size.
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