Dissection: Eye

We dissect and examine the different parts of a sheep's eye. These include the iris, retina, aqueous humour, vitreous humour, optic nerve and the lens. The lens is also used to distort the pattern on a piece of card to demonstrate how it bends light. Biology - Human Body - Learning Points. The structure of the eye and be able to relate what they have seen in diagrams to a real eye. The functions of the various components of the eye. How the iris controls the amount of light entering the eye. How the lens focuses light on the retina. The difference between being short-sighted and long-sighted. A Twig Experiment Film. Let students experience real experiments in lab conditions anywhere, from setup, method all the way through to analysis and real-world application.