Is it common to not see clearly when you first start wearing contact lenses?

Contacts: Not really. Causes of unclear vision with contacts include dry eye, poor contact lens fit, contact in the wrong eye, protein deposits, dirty contact lenses. Call your eye doctor if rewetting drops do not help the problem.

Sometimes: It often takes a few seconds or a minute or so to have the contact lens settle on the eye correctly. This is especially true of toric contact lenses. Also there is the tearing response, which vary on your eye sensitivity or dryness. As the contact lens settles and the wetting action of the tears settles down, and with a few blinks your vision should clear. If you are having problems, see your doc.

Maybe: Try them for a few days but if your vision does not improve, you may need to change contact lens powers.