PURPOSE:To observe the effect of laser/photocoagulation on prevention of recurrence of retinal datachment following removal of intraocular silicone oil. METHODS:Laser photocoagulation was performed in a series of 24 cases (24 eyes)which had been formerly operated on with vitreoretinal surgery and intraocular silicone oil tamponade for retinal datachment,2 weeks to 3 months before intraocular silicone oil removal. Argon green or krypton red laser photocoagulation were done in whole or half cycle scattered laser burns behind the sclera! ridge. RESULT:Among the 24 eyes ,after the intraocular silicone oil had been removed, 22 (91.7%)eyes had their retinas retained in normal position. CONCLUSION :Laser photocoagulation before removal of intraocular silicone oil might be helpful in avoiding the recurrence of retinal detachment. （Chin J Ocul Fundus Dis,1997,13: 197-198）