Can you obtain a pilot license with impaired vision / being blind in one eye?
It's possible to get a special issuance medical certificate in this case:


  An applicant will be considered monocular when there is only one eye
  or when the best corrected distant visual acuity in the poorer eye is
  no better than 20/200. An individual with one eye, or effective visual
  acuity equivalent to monocular, may be considered for medical
  certification, any class, through the special issuance section of part
  67 (14 CFR 67.401).