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1. cone of light. a circular spot of light seen reflected from the retina with the retinoscopic mirror. 2. pupillary r. (def. 1).
Medical dictionary. 2011.
light reflex
Look at other dictionaries:
light reflex — noun reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller • Syn: ↑pupillary reflex, ↑miosis, ↑myosis • Derivationally related forms: ↑myotic (for: ↑myosis), ↑ … Useful english dictionary
light reflex — see pupillary reflex … The new mediacal dictionary
light reflex — reflection of light, quality of light beams to bounce back from a surface … English contemporary dictionary
Pupillary light reflex — The pupillary light reflex is the reduction of pupil size in response to light.The pattern of pupillary response to light can help determine which of the cranial nerves is damaged. TypesThere are two types of response assessed for each eye:cite… … Wikipedia
consensual light reflex — stimulation of one eye by light produces a reflex response in the opposite pupil … Medical dictionary
direct light reflex — contraction of the sphincter iridis and reduction of the size of the pupillary aperture immediately after a ray of light is thrown upon the retina through the pupil … Medical dictionary
emergency light reflex — contraction of the pupils, closure of the eyelids, and lowering of the eyebrows.upon excessive stimulation of the retina by light … Medical dictionary
Reflex — For other uses, see Reflex (disambiguation). A reflex action, also known as a reflex, is an involuntary and nearly instantaneous movement in response to a stimulus.[1] A true reflex is a behavior which is mediated via the reflex arc; this does… … Wikipedia
reflex action — noun an automatic instinctive unlearned reaction to a stimulus • Syn: ↑reflex, ↑reflex response, ↑instinctive reflex, ↑innate reflex, ↑inborn reflex, ↑unconditioned reflex, ↑physiological reaction … Useful english dictionary
reflex response — noun an automatic instinctive unlearned reaction to a stimulus • Syn: ↑reflex, ↑reflex action, ↑instinctive reflex, ↑innate reflex, ↑inborn reflex, ↑unconditioned reflex, ↑physiological reaction … Useful english dictionary
