Check your eyeglasses lenses

[prescription sunglasses]

Check closely for imperfections or distortions in both lenses: holding the glasses at arm’s length, slowly move them across a straight line in the distance. A distortion in the lens may cause the straight line to appear curved or appear to move. Keep in mind that some extremely curvy or wrap-around styles of sunglasses may cause items to appear curved because of the way the lenses must be cut to fit into the wrapped frame.