understand the function of the eye in focusing near and distant objects, and in responding to changes in light intensity
FOCUSING:
Bending of light rays is done by the curved cornea (your lens can do this slightly too)
The shape of the lens is controlled by the CILARY MUSCELS
Distant Objects:
- cilary muscels RELAX
- this tightens the suspensory ligaments
- the lens pulls into a THIS shape
- the distant object is focused on the retina
Near Objects:
- cilary muscels CONTRACT
- this slackens the suspensory ligaments
- so the elastic lens goes FATTER
- the near object is focusd on the retina.
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