Objective To evaluate the effect of self-corneal limbus stem cell transplantation and conjunctival flap transposition for the treatment of pterygium.Methods Patients with pterygium(126 cases,214 eyes)were randomly divided into two groups:58 cases 92 eyes with corneal limbus stem cells transplantation,and 68 cases 122 eyes with conjunctival flap transposition.All patients were also treated with ulcer polyp excision under microscope.Recurrent rate and complication were observed during the one year following u...