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what does my eye prescription mean calculator?

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How can I calculate how much vision I have using an eyeglass prescription?
Right Power(SPH)-5.50    Right Cylinder-1.50    Right Axis180
Left Power(SPH)-5.50    Left Cylinder-1.00    Left Axis180

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asked Feb 12 in Health by smyadmin

5 Answers

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The concept "how much sight I have" is not the concept that medical professionals think about.  If the glasses give you normal vision, then you have 100% of your vision. If the glasses could not correct you to as good as that, then that is the concept of "how much vision I  have".  We don't calculate "how much vision" without glasses.

But to answer your question somewhat, you probably are seeing about 20/400 in each separately without squinting. I hope this helps.
answered Feb 12 by Richard Hom
0 votes
Visual acuity (how sharply you can see) and eyeglass prescription are 2 completely different things, even though they are related in the sense that generally, the higher the myopia or other refractive error, the poorer the visual acuity at particular distances.

So you cannot calculate visual acuity from an eyeglass prescription.

For example, if you wear your glasses, your vision will be 6/6 in the distance. If you don't wear your glasses, then it would be blurry in the distance, but would still be pretty good close up.
answered Feb 12 by Por Yong Ming

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32 views asked Feb 12 in Health by smyadmin
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