• Why does my prescription differ with contacts versus glasses?


    Question:

    My glasses prescription for my left eye is -11.25 and for my right eye it is -10.75; however, my contact prescription for both eyes is -9.50. How can my eyes be different from each other with glasses but not with contacts?


    Answer:

    Small differences in the prescription may not be reflected in both eyeglasses and contact lenses. Sometimes I will prescribe the same power for both eyes in contact lenses because the patient will do just fine and then they don't have to keep track of right and left lenses.

    If you are having trouble seeing well with the contacts as compared to the glasses, then you may want to have your prescription refined and updated.


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