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The iris contracts (gets smaller). If this doesnt happen, its a good indication of head trauma/concussion, etc.
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∙ 15y ago
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What part of the eye allows light to enter?
The pupil is the part of the eye through which light passes.
The opening through which light enters the eye?
The pupil allows light to enter the eye.
How does the iris control how much light enters the eye?
The iris is the coloured membrane in the eye that controls the amount of light entering the eye by expanding and contracting. The pupil is a hole in the centre of the iris. By expanding, more light will enter the pupil and by contracting less light will enter the pupil.http://en.wikipedia.org/wiki/Iris_(anatomy)
In the experiment on the photopupillary reflex what happened to the pupil of the nonilluminated eye?
Pupil Dilates
What structure is the opening that allows light to enter the eye?
The iris has an opening, called the pupil, through which light enters the eye.
In a bright light the pupil in your eye will?
When exposed to a bright light, the pupil of the human eye will contract. This action allows less light to come in contact with the lens.
What happens to the pupil not exposed to light?
When a light is not shined into an eye the pupil contracts gets bigger because the eye needs all the light being presented to it. If the light is not taken away the pupil does not dilate. PS like the eye gets smaller in the light.
What is an Argyll Robertson pupil?
An Argyll Robertson pupil is a bilateral small pupil of the eye which reduces in size when the patient focuses on a near object but does not constrict when exposed to bright light - a sign of neurosyphilis.
What part of the eye allows light to enter?
The pupil is the part of the eye through which light passes.
The opening through which light enters the eye?
The pupil allows light to enter the eye.
What happened to it when the light was flashed into eye?
When the eye detects bright light, the iris expands causing the hole at its centre (the pupil) to shrink in size. The brighter the light the smaller the pupil becomes. This happens because, in a dark place, the eye needs to take in as much light as possible to see better so the pupil expands; in a light place, the eye could be damaged due to over exposure to light so the pupil shrinks. The scientific word for "shrinks" is "contracts"
How does the iris control how much light enters the eye?
The iris is the coloured membrane in the eye that controls the amount of light entering the eye by expanding and contracting. The pupil is a hole in the centre of the iris. By expanding, more light will enter the pupil and by contracting less light will enter the pupil.http://en.wikipedia.org/wiki/Iris_(anatomy)
What opening lets light into the eye?
The pupil lets light into the eye.
In the experiment on the photopupillary reflex what happened to the pupil of the nonilluminated eye?
Pupil Dilates
What structure is the opening that allows light to enter the eye?
The iris has an opening, called the pupil, through which light enters the eye.
When a light is in your eye does you pupil go bigger or smaller?
Smaller because the eye is protecting it's self from the light
Which part allows light into eye?
The Lens. The Iris controls the amount of Light reaching the Retina.
