A scleral shell is an ocular prosthesis that is worn over an existing eye. The shell fits like a large contact lens covering the front surface of the eye globe. It moves with the existing eye and is fit so that the eyelid openings are symmetrical.
Patients who wear a scleral shell are usually able to wear it full time, removing it once or twice per month for cleaning. Other patients prefer to wear their shell during the day, removing it at night.
Many who have tried to wear a prosthetic lens or colored contact lens have had great success wearing a scleral shell. We can fit a scleral shell over an existing eye, even if it is nearly full sized.