That part is called as pupil. Through this aperture the light goes in to retina.
The Iris
retina
The steps of light being received by the eye are: generation of light passage of light to the eye through the tear film through the cornea through the aqueous humor through the lens through the vitreous humor through the layers of the retina to the photoreceptors of the retina
The steps of light being received by the eye are: generation of light passage of light to the eye through the tear film through the cornea through the aqueous humor through the lens through the vitreous humor through the layers of the retina to the photoreceptors of the retina
pupil
As light enters the eye, it passes through the cornea and the lens and is eventually focused onto the retina.
Lens, Cornea, Humerus focus light into the retina
The tapetum helps them see at night. It is behind the retina. When light goes through the retina, it strikes the tapetum and passes back through the retina, illuminating the image on the retina a second time. This is why it looks like their eyes glow when light hits them at night. The light is escaping out through the pupil.
The Iris
retina
The Iris
Light passes through the cornea, the aqueous humor, the pupil (which is just an opening in the iris), the lens, and the vitreous humor on its path through the eye to the retina.
the light travels through the conjunctiva,cornea,aques humour , pupil,the lens and the vitreous humour. it will also partially travel through the retina.
when light enters the eye it passes through the cornea then pupil then the lens where it is bent and focused on the retina
After hitting the object light is reflected and then it passes through the biconvex lens of your eye and the real image is formed on your retina.
Cornea, aqueous humor, lens, vitreous humor, retina.
Yes, the pupil is a physical structure of the eye. It is the black circular opening in the center of the iris that regulates the amount of light entering the eye. The size of the pupil adjusts in response to lighting conditions to help maintain optimal vision.