1.Sense of sight – the ability of eye
(sense organ)
to detect light
stimuli.
2. Eyes – sense organ that sensitive to light stimuli
• 3 layered of eyes wall
i. sclera (tough, outer layer)
ii. choroids (black, middle layer)
iii. Retina (innermost layer of the eye)
• The structure of the pupil is adapted to sense light. The
amount of light which enters the eye must be carefully
controlled for the eye to function properly.
This achieve through altering the pupil.
• in bright places – pupil smaller, iris bigger
• in dark places – pupil bigger, iris smaller
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