The procedure may work by the removal of a corneal antigenic stimulus as well as the tormation of a barrier preventing the invasion of inflammatory cells and immune reaction.

• 半层角膜移植术之所以对目伦氏溃疡有效，可能是藉著去除角膜抗原的刺激，并形成一道屏障避免发炎细胞的侵入和免疫反应。