Eye

• the eye is a sense organ enabling us to receive light rays to transmit them to our brain producing an image
• receptor cells in the eye allow the eye to detect light intensity and colour
• far objects


  lens are thin so light rays refract less, to make them thinner the suspensory ligaments contract and ciliary muscles relax
• near objects


  lens becomes thicker so light rays refract more, to make them thicker the suspensory ligaments relax ciliary muscles contract
• accommodation 


  lens changes shape, controlled by the ciliary muscles and suspensory ligaments to focus on near or distant objects