| 摘要 |
Method and apparatus for surgically altering the cornea of an eye by forming a pocket in the corneal stroma, situated between anterior posterior lamellar portions of the cornea, posteriorly displacing the anterior corneal portion to form a posteriorly protruding mass of corneal stroma, excising a part of the posteriorly protruding mass, and removing the excised part from the pocket. Also, apparatus for surgically modifying the cornea of an eye includes a cutter guide (76) for placement in a pocket formed in the corneal stroma, adapted to be placed between anterior and posterior lamellar portions of the cornea, and a cutter (78) for excising a posterior portion of the posterior stromal mass of the anterior lamellar portion, the cutter and the guide being adapted to cooperate in guiding the cutter through a prescribed effective stroke during the excision. |
