Keratoplasty lens edge has a gap, belongs to the lens broken situation, can not continue to wear, need to go back to the hospital for examination, if the gap is relatively small can be repaired, if the gap is larger can only replace the lens. Keratoplasty is a commonly used method to correct and treat myopia. By wearing rigid corneal contact lenses at night, the curvature of the cornea is altered to achieve the goal of having good naked eye vision without glasses during the day. If the lens is accidentally damaged while wearing, resulting in chipping at the edge of the lens, it should not be continued to be worn, otherwise, it will easily scratch the cornea, and even cause corneal infectious diseases such as keratitis. You need to bring your lenses to the hospital for examination. For smaller gaps, you can restore the smoothness of the edge of the lens by repairing it, but for larger gaps, it cannot be repaired and you can only replace the lens.