The Senses

Give four points on Cones?
- 6 million in each eye
- Detect colour
- Work only in bright light
- Found mostly at fovea
Give four points on Rods?
- 120 million in each eye
- Detect black and white
- Work in dim light
- Found all over retina
How many cones and rods are there in each eye?
- 6 mil cones
- 120 mil rods
What lighting do cones and rods work in?
- Cones only work in bright light
- Rods work in dim light
Where are rods and cones found?
- Cones found mostly at fovea
- Rods found all over retina.
How does bright/dim light affect the eye?
- Bright light reduces pupil size to prevent too much light entering
- Dim light dilated pupil size to allow as much light to enter the eye.
When does the pupil size dilate?

Dilates in dim light
What is a sight disorder? (Eg)

Short sighted (cannot see distant objects)
What does short sightedness mean for a person?

They cannot see distant objects
What is the corrective measure for the named sight disorder ?

Laser eye surgery

Author

jacquelineglynn

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Card Set

The Senses

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Updated

2023-06-04T09:40:12Z

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