A positive eye number on an eye prescription indicates that you are farsighted (hyperopic), and the prescription is correcting for this condition.
Here's a breakdown:
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Farsightedness (Hyperopia): This means you can see distant objects clearly, but close-up objects appear blurry. This occurs because light focuses behind the retina, instead of directly on it.
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Positive Numbers (+): Eye prescriptions use positive (+) numbers to denote the lens power needed to correct farsightedness. The number represents the diopters of lens power required to bring the image into focus on your retina. A larger positive number signifies a stronger prescription. For example, +2.00 indicates a stronger prescription than +1.00.
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How it Works: The lens prescribed with a positive number helps to bend the light rays more strongly, so that they converge on the retina and create a clear image.
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Comparison to Negative Numbers: Negative (-) numbers, on the other hand, indicate nearsightedness (myopia). Nearsighted individuals see close objects clearly, but distant objects are blurry.
In summary, a positive eye number on your prescription means you are farsighted, and the number represents the strength of the corrective lens needed to improve your vision.