If you have been told in the past that you are not a good candiate for contact lenses, ask us about scleral lenses.  These contacts are large-diameter, rig­id, gas-permeable lenses.  Because they are larger than the standard contact lens size, they cover the entire corneal surface and rest on the white of the eye.  Because of their size, they can be more stable and comfortable than other lenses, and they are less likely to dislodge from the eye.