Want this question answered?
Your eyes depend on light reflection in order to enable you to see. Light reflects off an object and bounces into your pupil and stimulates the cones and rods in your retinas thus enabling you to see the object.
Your cornea you could get a sunburn that’s a short term affect a long term would be if the ultraviolet light enters your retina and burn the exposed tissue
The pupils' size change in response to the degree of light that is entering the. Dilation depends less on the distance of the object from the eye and more on how many light rays are in the field of vision.
the pupil becomes smaller trying to converge the light coming from the object.
If there is a problem with the muscles of the pupil then it will not regulate light into the eye correctly.
it gets bigger
Nothing. AFTER the light is detected and calibrated, the pupil may change size.
If the pupil of the eye did not work, than your eye could not regulate light entering it.
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.
literally speaking the pupil is just a hole, so no. But by looking in a mirror you can perceive the pupil as a black circle in the middle of the iris.
by looking at it.
You can compare the shape of a human eye pupil to that of a cow eye pupil by means of comparing and locating the iris. The iris of a cow is brown where as the iris of a human has multiple colors.
With high intensity light your pupil constricts. This happens to protect your retina from damage by light of high intensity.