These create a film which covers the white of the eye and the cornea. Tears have three main components a watery component, an oily component and mucus. Her daddy has light blue eyes and mine are brown. Vitreous humour – a clear gel that fills the inside of the eye and helps it to retain its shape. Not quite sure what color they are, but I love them and I hope they stay this. Sclera – also known as the white of your eye, this is the outer layer of the human eye. Printable Eyeball coloring pages are a fun way for kids of all ages to develop creativity, focus, motor skills and color recognition. Retina – the light-sensitive tissue lining at the back of your eye that converts light into electrical impulses that are sent along the optical nerve to the brain. Pupil – this is the opening in the centre of the iris that lets in light. Optic nerve – a bundle of more than one million nerve fibres that carries visual messages from the retina to the brain. Macula – the sensitive area in the centre of the retina responsible for what you see ahead of you (central vision). Lens – the clear part of the eye behind the iris that helps to focus light, or an image, onto the retina. Iris – the coloured part of your eye that regulates the amount of light entering. Light rays pass through the pupil in the cornea.Īqueous humour – maintains the pressure in your eye and nourishes the cornea and the lens by supplying amino acids and glucose, as well as vitamin C.Ĭhoroid – a thin layer of blood vessels that nourish the retina and absorb scattered light.Ĭiliary muscles – a circular muscle that relaxes or tightens to enable the lens to change shape for focusing.Ĭornea – a clear covering on the front of your eye that focuses light entering the eye.įovea – a tiny pit in the macula that provides the sharp central vision that you need for activities, such as reading and driving. Find out about different parts of the eye.īasically, the role of the eye is to convert light into electrical signals called nerve impulses that the brain converts into images of our surroundings.

Printable pictures of eyeballs