Question

explain the parts of human eye

Answer 1

a human eye has the following main parts :

• Cornea : it is the transparent spherical membrane covering the front of the eye.
• Crystalline Lens : the eye lens is a convex lens made of a transparent, spherical, soft membrane.
• Iris : it is a dark muscular diaphragm between the cornea and the lens. it controls the size of the pupil.
• Pupil : it is a small hole between the iris through which light enters the eye
• Ciliary muscle : they hold the lens in position and help in modifying the curvature of lens.
• Retina : image is form on the retina.
• Optic nerve : it sends visual information from the retina to the brain.
• Blind spot : it is the point where the optic nerve leaves the eye.
• Aqueous Humour : it gives nutrition to the eye.