0
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.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
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.
What is the colored membrane attached to the ciliary body?
The colored membrane attached to the ciliary body is the iris. The iris is located in front of the lens of the eye and is responsible for controlling the size of the pupil, which regulates the amount of light entering the eye.
What structure is the visible colored part of the eye that controls pupil dilation?
The visible colored part of the eye that controls pupil dilation is the iris. The iris regulates the size of the pupil in response to light conditions and helps to control the amount of light that enters the eye.
What is the name of the eye that controls how much light passes through the pupil is called the?
The iris is the part of the eye that controls the size of the pupil and regulates the amount of light that enters the eye.
What part of eye makes the pupil smaller in bright light and larger in dim light?
The iris is the part of the eye that controls the size of the pupil. In bright light, the iris constricts the pupil to reduce the amount of light entering the eye, while in dim light, the iris dilates the pupil to allow more light to enter and improve vision in low-light conditions.
What structure regulates the amount of light that goes into the eye by controlling the size of the pupil?
The iris, which is the colored part of the eye, regulates the amount of light that goes into the eye by controlling the size of the pupil. The muscles in the iris can expand or contract the pupil in response to changes in light intensity.
Does the iris controls the size of the pupil?
Yes, the iris is responsible for controlling the size of the pupil. It contains muscles that adjust the size of the pupil in response to varying light conditions. In bright light, the iris contracts to make the pupil smaller, and in dim light, the iris relaxes to make the pupil larger.
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.
What tunic contain the iris?
The iris is contained within the middle layer of the eye known as the uvea, which includes the choroid, ciliary body, and the iris. The iris is the colored part of the eye that surrounds the pupil and regulates the amount of light entering the eye by controlling the size of the pupil.
What is the colored membrane attached to the ciliary body?
The colored membrane attached to the ciliary body is the iris. The iris is located in front of the lens of the eye and is responsible for controlling the size of the pupil, which regulates the amount of light entering the eye.
Colored part of the eye that contracts or relaxes in response to light?
The Iris contains the muscles that control Pupil size.
Which part of the eyes control size of the pupil?
The iris, specifically the muscles within it, control the size of the pupil. Contraction and relaxation of these muscles regulate the amount of light entering the eye by adjusting the diameter of the pupil.
Opening the eyes involves the what nerve?
Opening the eyes involves the cranial nerve called the oculomotor nerve (CN III). This nerve innervates the muscles responsible for raising the upper eyelid and controlling the pupil size.
What part of the eye is just behind the pupil?
The iris is the colored part of the eye that surrounds the pupil, controlling how much light enters the eye by adjusting the size of the pupil. Just behind the iris is the lens, which further focuses the light onto the retina for processing.
What part of the body can grow up to ten times its normal size?
the pupil of the eye
What structure is the visible colored part of the eye that controls pupil dilation?
The visible colored part of the eye that controls pupil dilation is the iris. The iris regulates the size of the pupil in response to light conditions and helps to control the amount of light that enters the eye.
What is the color portion of the eye?
The color portion of the eye is the iris. This part of the eye gives it its color and controls the size of the pupil to regulate the amount of light that enters. The iris contains muscles that adjust the pupil size in response to lighting conditions.
