Objective    To compare the anatomic and functional results of ocular intensive and systemic corticosteroid administration prior to vitrectomy for primary rhegmatogenous retinal detachment with choroidal detachment.     Methods    A retrospective

clinical pilot study.     Results    Of 38 cases of primary rhegmatogenous retinal detachment with choroidal detachment

11 cases received intensive 1% prednisolone acetate eyedrops once each hour

totally 16 times a day (Group A) for (4.91±1.51) days and 27 cases received systemic corticosteroid treatment which is performed as intravenous injection of 15 mg Dexamethasone for 3 d and then taped down for (5.67±1.88) days prior to vitrectomy (Group B). The rate of anatomic reattachment by one operation was 54.5% for Group A and 63.0% for Group B; The rate of reattachment by reoperation was 80% for Group A and 100% for Group B. The functional result was the same in the two groups

with the vision improvement in 70% cases of Group A and 68% cases of Group B. The minimal follow-up period was 3 months after final operation.      Conclusion    There is an obvious tendence of lower rate of anatomic reattachment in intensive steroid eyedrops treatment group than in systemic corticosteroid treatment group. However

the functional result is almost the same in the two groups.