Thursday, May 22, 2014

Why is my contact lens prescription different from glasses prescription?

i understand that because contact lenses are closer to eyes they are less. But he is the question.
i have contact lenses that are both -4 on both eye. But on glasses it is -5 for one eye and -5.75 for the other. Yes there is correction for austigmatism and etc. But like why on contact lenses both eyes have the same prescription and i can use just one box of contact lenses for each eye. But with glasses each eye has different prescription

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