Objective　To investigate clinical manifestation and pathologic changes of corneal incision rupture at different stages and the cause of incision rupture after abortive trauma.Methods　Three removal eyeball obtained from RK for severe incision rupture by abortive trauma were fixed with formalin, embedded with paraffin, sected stained by HE and observed under light microscope.Results　The eyeball distorted, intraocular structure disordered and vision lost severely in 3 eyes. Epithelial plugs were found in superficial layer of stroma and Bowman's layer broke and displaced in three cases. Healing and gap of incision presented 29 days after RK in 1 case. There were incision scar, collagen disarrangement and epithelial island in deep incision more than 2 years following RK in two cases, descent's layer broke in 1 case.Conclusion　RK can weaken the eye which will rupture easily and their visual function will be disturbed severely after abortive trauma.