i = 'eye'
The 'eye' is a possibility
The iris is the colour part of the eye.
Cornea
a part of the eye lens
a part of the eye lens
An eye.
Ultraviolet, commonly known as UV rays, is a part of the electromagnetic radiations with wavelength in the range 400nm-10nm. It is not a part of the human eye. It is intact considered to be harmful the human eye, skin, etc. More information can be found on the link below.
The "retina".
eye
The black part of your eye is known as the pupil.
That part is called as iris. That makes your eyes so beautiful.