The opening at the center of the eye that allows light in varying amounts into the eye.
The opening that monitors how much light enters the inner part of the eye.
The expanding and contracting opening in the iris of the eye, through which light passes to the retina.
Variable-sized, circular opening in the center of the iris that regulates the amount of light entering the eye. Appears black when looking at eye.
The part of the eye in the center of the iris (the colored part of the eye).
the opening in the center of the iris- it changes size as the amount of light changes (the more light, the smaller the hole)
the black portion of the eye formed by a central opening in the iris, that allows light to pass from the front into the back of the eye.
Essentially, a hole in the iris. This is the black opening in the center of the eye. Its size is controlled by the iris muscles.
The dark-colored center of the eye that opens and closes to vary the amount of light entering the eye.
A hole in the eye, covered by a transparent layer called the cornea. Light enters the eye through the pupil. The amount of light that enters the eye is controlled by the muscles in the iris.
In the eye, a round hole formed by the iris that regulates what light passes into the eye. Light must pass through the pupil to get to the retina.
the black aperture (hole) in the iris that lets light pass to the lens.
The central opening of the iris, through which light penetrates into the inner reaches of the eye.
The opening in the center of the iris that enlarges (admitting more light) and reduces (admitting less light). A patient's whose pupils enlarge too much may experience nighttime glare. This is why Dr. Cabler will measure the pupil's enlargement capabilities. Individuals with this condition may still have LASIK, but may experience some nighttime glare because the LASIK treatment zone is smaller than the pupil's enlargement capabilities.
A black spot in the middle of the eye that looks like a small blak hole.
the dark portion of the eye through which light enters.
The opening in the colored portion (iris) of the eye, through which light passes.
The hole in the middle of the iris that appears black.
the opening in the center of the iris through which light passes. Reduced penetrance - a gene whose effect has been modified or reduced.
pupa = a girl, damsel, a doll (as in puppet); L. pupillae = small doll-like images seen mirrored in the eye, led to term pupilla for the central aperture of the iris (Cicero).
Black opening behind the cornea in the center of the iris that regulates the amount of light entering the inner lens of the eye.
The opening in the vertebrate eye through which light passes.
is what appears as a small black dot in the center of the iris and changes its diameter in response to ambient lighting.
The opening in the center of the iris that appears as a black circle and admits light into the eye.
The centre of the coloured part of the eye (iris). It is black. By narrowing and widening, it controls the amount of light entering the eye. At night, the pupil is widely opened, allowing more light to enter the eye. In the bright sun, the pupil constricts and prevents the dazzle of the light affecting us.
The opening in the iris of the eye that admits light.
The opening at the centre of the eye, through which light enters the eye.
Latin pupilla = the central black orifice in the iris; adjective - pupillary.
the opening in the center of the eye through which light passes--necessary for vision.
The opening at the front of the eye that regulates the amount of light allowed to pass into the eye.
The round hole in the centre of the iris that corresponds to the lens aperture in a camera. The pupil varies in size according to whether the environment is bright (small pupil) or dark (large pupil).
The dark portion in the center of the eye that collects light.
The small dark portion in the center of the eye, the pupil opens and closes to regulate the amount of light, and thus the amount of visual information, the retina receives.
Opening in middle of eye, appears as black dot
the dark central part of the eye
The area of the eye that allows light to pass through to the retina of the eye. The Iris controls the size of the pupil by contracting or expanding to regulate the amount of light entering the pupil. The iris functions much like the opening in a camera.
opening in iris that allows light to enter eye
The pupil is the aperture through which light - and hence the images we "see" and "perceive" - enters the eye. This is formed by the iris. As the size of the iris increases (or decreases) the size of the pupil decreases (or increases) correspondingly. ... more about the Pupil
The opening in the iris through which light passes. The irises dilate the pupils in the darkness to admit more light and contract them when it is too bright.
The dark, almost black, center part of the eye. This part of the eye adjusts to the amount of light in any given are, so that the human may see clearer.
The opening in the iris that admits light into the human eye. 266, 648
The pupil is the dark circular, hollow passage in the middle of the iris through which the light enters the eye and forms an image on the back of the eye.
(PYOO-pihl) The small hole through the center of the iris in the eye through which light passes.
the variable hole in the middle of the iris which admist light into the eye.
The black part of the eye through which light enters; enlarges in dim light and decreases in size in bright light.
The blade, circular opening in the center of the iris (the colored portion of the eye). The pupil controls the amount of light that enters the eye.
Hole in the center of the iris, through which the light enters. Can be either round, as in humans, or slit-shaped, as in many nocturnal animals.
The dark center in the middle of the iris through which light passes to the back of the eye.
The pupil is the opening in the middle of the iris. It functions like the diaphragm in a camera, controlling the amount of light that enters the eye. The pupil is small in bright light and large in dim light.
The pupil is the “black circle� in your eye. The primary function of the pupil is to control the amount of light entering your eye. When you are in a bright environment, the pupil becomes smaller to allow less light to pass through. When it is dark, the pupil expands to allow more light to reach the back of your eye.
pyoo-pill] The round opening in the iris which lets light into the eye and onto the retina.
This is the opening in the eye which allows light to pass through
the round, black contractile aperture of the eye; surrounded and defined by the iris; located in the anterior chamber behind the cornea.
The pupil appears as a small black dot in the center of the iris (the colored part of the eye). The pupil changes its diameter in response to changes in ambient lighting. Operating much like the aperture of a camera, the pupil varies the amount of light reaching the retina and the depth of focus of the eye.
aperture in the eye through which light enters.
The round black opening in the iris that allows light into the eye and onto the retina.
Dark part of eye that adjusts (dilates) to light level
The black part of the eye. This is actually an opening that light passes through on its way to the retina at the back of the eye. Click HERE for eye diagram
Often compared with the shutter of a camera, the pupil is the black circular hole in the iris that regulates the amount of light entering the eye. The pupil appears black because of the absence of light inside the eye. By using a special instrument called an ophthalmoscope, eye doctors are able to examine the inside of the eye. "Red eye" seen in pictures is due to the camera's flash illuminating the inside of the eye before the pupil can constrict. Go to Top
An aperture or its image of a lens or an optical instrument. The aperture of an eye created by the opening of the iris of the eye.
black spot in the iris, which opens into the interior of the eye.
The black, circular opening in the center of the iris, which is the colored portion of the eye.
The adjustable opening at the center of the iris that allows varying amounts of light to enter the eye.
The circular opening in the center of the iris through which light passes into the eye.
The black central part of the iris that changes size in response to how much light is being received by the eye.
The circular opening that looks like a black hole in the middle of the iris.
Contractile aperture in iris.
The round, dark center of the eye, which opens and closes to regulate the amount of light the retina receives.
Often compared with the shutter of a camera, the pupil is the black, circular "hole" in the iris that regulates the amount of light entering the eye. The pupil appears black and the contents beyond it dark because of the absence of light inside the eye, similar to the way a dark room looks when viewed from a lighted one. By using a special instrument called an ophthalmoscope, eye doctors are able to examine the inside of the eye. Go to Top | Close Window
black-appearing circle in the center of the iris; changes in size control the amount of light that reaches the retina.
The pupil is the black opening in the coloured part of the eye. Light passes through this opening.(empty)
The round, dark, central opening of the eye through which light enters.
The opening of the iris. The pupil may appear to open (dilate) and close (constrict) but it is really the iris that is the prime mover; the pupil is merely the absence of iris. The pupil determines how much light is let into the eye. Both pupils are usually of equal size. If they are not, that is termed anisocoria (from "a-", not + "iso", equal + "kore", pupil = not equal pupils). See the entire definition of Pupil
The pupil is at the center of the iris, it adjusts its diameter in relation to light. It is under control of the autonomic nervous system.
the opening in the iris which permits entry of light into eye. Through the opening and closing of the iris muscles excessive light is prevented from falling on the retina and damaging it by excess bleaching of the photoreceptors. Within the animal kingdom there are many weird and wonderful variations on pupil shape.
the opening in the iris of the eye which allows the passage of light
Circle in the center of the iris through which light enters the eye. The opening or dilation of the pupil is controlled by the iris. ( Pupille, n.f)
Hole in the iris allowing light to the retina, gets larger in dilation, smaller in constriction
The pupil is a circular opening in the center of the iris. The size of the pupil changes according to the amount of light present. It becomes small in sunlight and large in a dark room.
The hole in the center of the iris and changes size in the light.
The black, circular opening in the center of the iris. The pupil allows varying amounts of light to pass through the eye. The muscles of the iris control the diameter of the pupil, widening it to allow in more light under dim conditions and narrowing it to restrict light under bright conditions. The pupil appears black only because light enters the eye through it but is not reflected back out.
A black opening in the colored part of the eye (iris). Muscles in the iris can make the pupil larger or smaller in response to light.
The black circular opening in the center of your iris, which adjusts in size to regulate the amount of light entering the inner part of your eye.
the circular opening at the center of the iris that controls the amount of light into the eye.
The opening at the center of the iris of the eye that varies in diameter depending upon the brightness of the light coming into the eye.
the center hole in the iris through which light must pass to reach the back of the eye.
Opening in the iris (the colored part of the eye)that allows light to reach the retinal nerves at the back of the eye.
the opening in the center of the iris that appears as a black dot and through which light enters the eye
The black opening in the center of the iris that allows light into the eye; its size increases under dim lighting
a hole in the center of the iris that changes size in response to changes in lighting. It gets larger in dim lighting conditions and gets smaller in brighter lighting conditions.
A circular opening in the center of the iris through which light enters the eye.
Dark aperture in eye; size controlled by iris.
The hole in the center of the iris is the pupil. Light enters the eye through the pupil.
The opening in the centre of the iris.
The pupil is the variable-sized, black circular or slit shapped opening in the center of the iris that regulates the amount of light that enters the eye.Cassin, B. and Solomon, S. Dictionary of Eye Terminology. Gainsville, Florida: Triad Publishing Company, 1990.
