Long and Short Sightedness - The Eye Flashcards

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1
Q

If someone is short sighted what is their problem

A

they refract light too much so cannot see far

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2
Q

What is it called to be short sighted

A

myopia

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3
Q

Where does light get focussed for short sighted people when looking far away

A

too early so doesn’t land on retina

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4
Q

What is the likely problem of someone with myopia

A

their lens is too fat and curved

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5
Q

What lens should people with myopia get in their glasses and why

A

They should get convex glasses to refract light outwards and make the fat lens do more work on refracting light

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6
Q

If someone is long sighted what is their problem

A

they don’t refract enough light so cannot see far

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7
Q

what is it called to be long sighted

A

hyperopia

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8
Q

where would the light get focussed for long sighted people when looking close

A

the focus would be behind the retina

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9
Q

what is the likely problem of someone with hyperopia

A

their lens is too skinnyh

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10
Q

what lens should people with hyperopia get in their glasses and why

A

concave lens to refract light inwards and make the skinny lens do less refraction on light

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