the eye
- Created by: Muskaan Dhaliwal
- Created on: 08-08-19 08:10
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- the eye
- sense organ containing receptors sensitive to light intensity and colour
- retina
- light sensitive cell layer
- optic nerve
- carries impulse to the brain
- sclera
- protects the eye
- cornea
- transparent layer that covers the pupil and iris
- iris
- pigmented layer
- controls size of pupil
- ciliary muscles
- controls thickness of the lens
- accommodatio-n is the process of changing the shape of the lens to focus
- to see near objects:
- suspensory ligaments loosen
- lens gets thicker
- light is more refracted
- ciliary muscles contract
- to see far objects:
- ciliary muscles relax
- suspensory ligaments pulled tight
- lens pulled thin
- light is slightly refracted
- to see near objects:
- suspensory ligaments
- connects lens to ciliary muscles
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