The
Essential
Guide to
Laser Eye
Surgery
PART 1: Why do you need glasses?
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FOCUS Laser Vision 0845 5000 500

This means YOU!
EVERYONE will need to wear glasses in their
lifetime, either for distance or reading or both!

Why can’t you see clearly?
There are 4 reasons why
you will need glasses:
•short sight (myopia)
•long sight (hyperopia)
•astigmatism
•presbyopia
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Normal sight: Distance vision is good because
focusing is exactly on the retina
Age: All sight is good until 45 when close vision fails
Normal eye Refractive errors
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Short sight: Distance vision is blurry because
focusing is too strong inside the eye
Age: Starts usually teens to twenties
Short sight Refractive errors
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Long sight: Distance may be good initially but near
vision blurry as focusing is too weak inside the eye
Age: Starts usually thirties to forties - later distance
vision will become blurred
Long sight Refractive errors
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Astigmatism: Distortion at all distances due to
uneven focusing
Age: Starts young, may worsen in teens to twenties
Astigmatism Refractive errors
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Presbyopia (ageing eyes)
•loss of close vision
•starts around 45
•progresses to 65
•may require varifocals
or 2 pairs, one for
distance and one for
reading
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Presbyopia: Close vision is blurry because the lens
inside the eye is too weak to focus on near objects
Age: Starts usually in mid forties but everyone
affected by age 51
Presbyopia Refractive errors
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Laser eye surgery
• All glasses problems can now
be treated with laser eye
surgery
• Biggest advances have been in
treating near vision for age
related presbyopia
• Reading correction available
from FOCUS Laser Vision
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0845 5000 500
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FOCUS Laser Vision Choose once, choose right