Topic: Diopter Measurement
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What does a diopter measure?
A diopter, a noun,is an instrument, invented by Hipparchus, to measure the apparent diame... Read More »
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What does -8.25 diopters represent in Snellen measurement?
The first number designates the amount of myopia (minus num... Read More »
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How is a refractive error measured and what is a diopter?
When you read a prescription, a minus sign means nearsightedness and a plus sign means farsightedness. The first number in the prescription indicates the amount of myopia or hyperopia you have. If there are numbers written in the next two c... Read More »
Source: http://www.hopkinsmedicine.org/wilmer/lasik/faqs.html
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Diopter Measurement
