Hi, I recently bought prescribed contacts. I was given four boxes, each with 6 lenses or 3 pairs. My question is, how long does a pair of these last? My doc said something about it being yearly but I don't think my question was specific enough. I did the math and came up with around 15 days, but I'm not sure if that's correct. Please help and thank you
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How long to wear Air Optic astigmatism contacts?