Light and
The Eye
Correcting Focus Problems
Blindness
Extending Human Vision
Camera's, Lasers & Optical Fibres
100
This part of the eye does the majority of the focusing for the eye.
What is the cornea?
100
When vision is normal, the image focuses on this part of the eyeball.
What is the "retina"?
100
The major cause of blindness in the world is due to these 1 or these 2 factors.
What are poor nutrition or lack of education?
100
These are the two types of telescopes
What are reflecting and refracting telescopes.
100
The part of a camera that acts like the pupil in the eye.
What is the diaphragm
200
This part of the eye protects the eye and is the white part of the eye.
What is the sclera?
200
As adults age, the flexibility of this part of the eye decreases causing the need for glasses.
What is the "lens"?
200
Deficiency in this vitamin results in blindness
What is Vitamin A
200
Refracting telescopes use these working parts.
What are convex lenses.
200
Laser light has these 3 special features.
What light with the same wavelength, movement in the same direction and identical crests and troughs.
300
This is the part of the retina that allows us to focus on letters on the page.
What is the "macula"?
300
This kind of lens corrects for near-sighted vision.
What is a "concave lens"?
300
8% of men and 1% of women have this type of blindness.
What is "colour blindness"?
300
A telescope that collects light with a concave lens.
What is a reflecting telescope.
300
The part of the camera that acts like a retina.
What is the CCD.
400
Cells on the retina that help us see colour are called this.
What are cone cells?
400
This vision problem is because light comes to a focal point behind the retina.
What is far-sighted vision.
400
This Aboriginal group uses snow goggles made of caribou antler to reduce snow-blindness.
What are the "Inuit"?
400
Objects in binoculars that refract light.
What are triangular prisms
400
The CCD stands for ....
What is Charge Coupled Devise
500
In nocturnal animals, a part of the retina is specialized to be more sensitive to light. This part of the retina is called this.
What is the "tapetum"?
500
This part of the eye is irregularly shaped resulting in multiple focus points on the retina.
What is "cornea"?
500
There is more blindness in 3rd world counties because of this number 1 factor.
What is "malnutrition"?
500
The Hubble telescope was launched into space in this year.
What is 1990.
500
Reflecting light from all sides of an optical fibre until it all comes out the other end of the fibre is called...
What is Total Internal Reflection.
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