Retina- The layer at the back of the eye which contains two light- receptive cells which- in the presence of light- release an electrical impulse to the brain to form an image.
Lens- This is a disc which changes in length and curveature in order to refract light to the retina.
Cornea- This is the front part of the eye which refracts light as it enters the eye.
Pupil/iris- The pupil is a hollow in the middle of the iris which allows light into the eye. The iris is the coloured part of the eye which controls how mcuh light enters the pupil.
Ciliary muscle- These are the muscles connected to the lens and suspensory ligaments which control the size and curveature of the lens.
Suspensory ligaments- These control how the ciliary muscle stretches and slackens.
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