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How a Contact Lens Prescription Is Determined at Your Exam
A contact lens prescription is not simply a smaller, lens-shaped version of your glasses prescription. It comes from a separate process, one that blends vision correction, corneal measurement, tear film assessment, eye health, and a fair amount of practical judgment. People are often surprised by that the first time they go through a contact lens eye exam. They expect a quick swap, maybe a few numbers copied over from their eyeglass prescription, and instead they find thems