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Ophthalmology > Refractive errors > Flashcards

Refractive errors Flashcards

1
Q

What is myopia?

A 
Short sighted (short word)
Eyeball is too long - light focuses infront of the retina
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2
Q

How is myopia corrected?

A

Concave lens

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3
Q

What is hypermetropia?

A 
Long sighted (long word)
Eyeball is too short - light focuses behind the retina
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4
Q

How is hypermetropia corrected?

A

Convex lens

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5
Q

What is astigmatism?

A

Cornea has irregular curve - light rays arent focused onto one point

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6
Q

What is presbyopia?

A

Lens stiffening associated with ageing

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Ophthalmology (10 decks)

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