Through which of the following primary interface of an eye does the light enter?
Retina
Cornea
Lens
Pupil
The cornea is a thin transparent membrane which allows light to enter into the eye.
In the process of light entering our eye and forming an image at retina, at which interface the maximum refraction takes place?
(a) Draw a labelled diagram of the human eye. Label the following parts on this diagram: Cornea, Iris, Pupil, Ciliary muscles, Eye-lens, Retina, Optic nerve and Blind spot.
(b) What are the functions of the following parts of the eye?
(i) Iris (ii) Eye-lens (iii) Ciliary muscles (iv) Retina (v) Optic nerve