The Structure of the Eye
- Front part of the tough outer coat, the sclera. It is convex and transparent.
- refracts light - bends it as it enters the eye
- Pigmented - decides the colour of your eyes - so light cannot pass through. Its muscles contract and relax to alter the size of its central hole or pupil.
- controls how much light enters the pupil
- Transparent, bi-convex, flexible disc behind the iris attached by the suspensory ligaments to the ciliary muscles.
- focuses light onto the retina
- The lining of the back of eye containing two types of photoreceptor cells - rods - sensitive to dim light and black and white - and cones - sensitive to colour. A small…