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Requirements:
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1)
you must have either a 15", 17", or 19"
monitor
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2)
you must have flash plugin for it to work (click here to
download)
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| There
are a few tips that should make the exam more accurate: |
1)
have someone measure out the correct length that you should
sit back at
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2)
keep a ¼" black border around your screen
monitor by using the monitor buttons
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3)
try not to squint
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4)
when you can no longer read more than half the words on a line,
press stop
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| |
| A
word of advice: |
1)
do not consider this as an official exam, only an optometrist
has the most precise instruments to find your true Rx
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2)
this exam is only meant to give you an idea of where your eye
power lands
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3)
due to variations in every monitor, accuracy is not perfect
(dot pitch, brightness/contrast, monitor size, screen size, screen
resolution)
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