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The size of the eye's pupil controls that amount of light entering the eye and then falling on the retina.
As a consequence the diameter of the pupil also controls the depth of field (how much in front of you is in focus) of the image.
In bright light the pupil is small and the depth of field is wide. in dark condition the diameter of the pupil opens up and more light enters the eye but the depth of field is narrow.
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What is the opening that is controlled by the muscles of the iris?
The opening that is controlled by the muscles of the iris is called the pupil. The iris is responsible for adjusting the size of the pupil in response to different lighting conditions.
Pupil reaction to light in glascow coma scale count pupil size before or after light stimulation?
yes
The can increase and decrease in size to monitor the amount of light entering the eye?
pupil
Does pupil size remain constant while focusing fixed near point object?
Yes, pupil size should not be affected by the focal distance, unless there is a change in the amount of light at that distance. To change focal distance, the lens contracts or expands. The pupil dilates and constricts based upon how much ambient light there is.
Is the amount of light allowed in the eye regulated by the pupil?
The lens and the pupil of the eye are two independent parts. The lens focuses light onto the Retina, and the pupil regulates the amount of light entering the eye. So, if the light intensity changed while you were focused on a particular object, the size of the pupil would change, but the lens focus would not.
How is the Nerve impulse responsible for the pupil becoming smaller?
Pupil is a window for the light to enter our eyes. When we are in a dim light a nerve impulse is generated to the brain to enlarge the pupil. Size of pupil is managed by the iris (coloured part of the eye). If excessive light is there, the pupil shrinks to a smaller size so that the eye's not damaged esp. the retina where the image of objects are formed
What structure regulates the amount of light that goes into the eye by controlling the size of the pupil?
Fovea Centralis
What is the opening that is controlled by the muscles of the iris?
The opening that is controlled by the muscles of the iris is called the pupil. The iris is responsible for adjusting the size of the pupil in response to different lighting conditions.
Which part of the eyes control size of the pupil?
the part of the eye that controls the pupil is the iris
Colored part of the eye that contracts or relaxes in response to light?
The Iris contains the muscles that control Pupil size.
What part of the body can grow up to ten times its normal size?
the pupil of the eye
What is the name of the dark part of the eye that changes its size to let in light?
The pupil absorbs light.
What is the only body part that grows ten times it's size when excited?
The Penis, you already new the answer to this question
A) Size of pupil becomes __________________when you see in dim light?
size of pupil becomes larger when you see in dim light
What muscle controls the size of pupil?
IrisThe circular muscles of the iris expand and contract the pupil. The size of the pupil determines how much light will enter the eye, so the iris effectively controls the amount of light that is passed to the retina. The iris is also responsible for eye color (blue, brown, green, hazel). See the related link below for more information on the iris.
The part of the eye which decreases in size when a bright light is shone into the eye?
The pupil decreases in size to lessen the amount of light allowed in, so as to prevent damage.
What is anisocoria?
unequal pupil size
