Cryosurgery for treatment of trichiasis

We cryosurgically destroyed eyelashes in rabbits and applied the technique to treat 23 selected patients with trichiasis. Liquid nitrogen was sprayed on the eyelid margin by using a double, rapid-freeze, slow-thaw cycle monitored by a subcutaneous thermocouple to -30 degrees C. It was an improvement on electrolysis and a simple alternative to surgery.