·AIM:To investigate the operation methods and clinical effects of hydroxyapatite(HA)orbital implantation.·METHODS:Primary implantations were performed in 62 patients 62 eyes with unpacked HA artificial eye mount.The follow-up period was 6-24 months.All of the cases were observed.·RESULTS:All of the cases got satisfactory therapeutic effects.54 eyes(87%)had good effect,while 8 eyes(13%)had ordinary effect.There were no postoperative complications such as exclusion,infection,exposure,prolapsus,and so on.No conjunctival breach,orbital infection and ptosis occured.·CONCLUSION:HA is an ideal material for orbital implantation.Unpacked HA orbital implantation is a good operation method,which is easy and has less compli-cations.·