Not necessarily. If a child has severe misalignment, it generally will be visible to a parent that the child is cross-eyed or wall-eyed, or sometimes parents might notice that their child is squinting one eye when they are outside in the sunlight or they may notice that one eye looks askew in a photograph. Less severe misalignment, also sometimes called microstrabismus, may not be detected unless the child undergoes a vision screening with a photoscreening device or other instrument that can detect more subtle misalignment or is examined by an eye care professional. Strabismus can only be diagnosed by an eye care professional.