What is the standard base curve for contact lenses? My insurance covers a check up every 2 years and I just got a check up and the doctor didn’t check my base curve or diameter. I can’t afford another check up, so I what wondering if there is a standard base curve. If the standard base curve is not 8.4, 8.7, or 9.0, which one should I pick?
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- what is the standard curve on a contact lens?