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A simple pair of glasses has spherical lenses of similar power. If one eye is weaker than the other, or you have astigmatism, lenses to compensate for that are more complex. EM recommends that you start with small and even spherical reductions first, then after you've accomplished a few of those, then work on reducing complexity. Guide:Reducing lens complexity
There three major components in the lens complxity.
The difference between your left eye and right eye spherical correction. EM recommends that you start reducing the dipter ratio only you have done with astigmatism.
You may reduce your close-up astigmatism correction first, then work on reducing your astigmatism for distance.
Astigmatism Correction Difference
The difference between your left eye and right eye cylinder correction.
- "Pro Topic: How To Reduce Prescription Complexity - Endmyopia". endmyopia.org. Retrieved 2020-06-05.Page Module:Citation/CS1/styles.css has no content.
- "Reducing Potential Harmful Prescription Complexity". endmyopia.org. Retrieved 2020-06-05.Page Module:Citation/CS1/styles.css has no content.