AIM:To observe the relationship between original hole and scleral buckling after surgery therapy for simple rhegmatogenous retinal detachment by two different observation modes. METHODS: Thirty-five eyes of 35 patients with simple retinal detachment were divided into two groups.Group A including 17 patients (17 eyes) were treated by external microsurgery to complete scleral buckling operation.Group B including 18 patients (18 eyes) were treated by indirect ophthalmoscope.The patients of both groups were treated with tobradex eyedrops and systemic antibiotic and corticosteroids for one week postoperatively.The patients were followed up for 1 week to 6 months。 RESULTS: In group A,the original hole of 15 eyes located on buckled sclera and the success rate was 88%.In group B, the original hole of 15 eyes located on buckled sclera and the success rate was 83%.There was no difference between the two groups (P>0.05). CONCLUSION: There is no significant difference in postoperative cases with original hole located on buckled sclera between patients after surgery therapy for simple rhegmatogenous retinal detachment by two different observation modes