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2 cards from this section. Quick, good the night before a test.
What is the main function of the human eye?
Think about how the eye helps you see.
What part of the eye controls the amount of light entering?
This part gives the eye its color.
What term describes the eye's ability to adjust its focus on objects at different distances?
Think about how your vision changes between near and far objects.
True or False: Myopia is also known as far-sightedness.
Remember the definitions of the terms.
A person with myopia has a far point of 50 cm. Calculate the nature and power of the lens required for correction.
Remember the far point means he cannot focus on further distances.
An elderly person struggles with reading, and their near point is 80 cm. Determine the required lens type and its power.
Consider what happens to near vision as a person ages.
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