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Contact Lens Number Less than Glasses Number ?
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wdmalik posted:
I want to use Contact numbers so I went to my doctor for latest prescription. To my surprise, the number was less than I am using for my glasses. I asked him to write the specifications for my glasses as well, that matched to the ones I am using.

Why Contact Lenses have less number than Glasses, will it effect the eye sight in any way ?
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Alan M Kozarsky, MD responded:
The "contact number" (prescription in diopters) can definitely be less than the eyeglass prescription for an eye. This is especially true for strong nearsighted prescriptions. The closer a correcting nearsighted lens is to the eye, the less powerful it needs to be. So, the contact lens prescription is slightly less than the spectacle prescription with stronger nearsighted corrections.


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