ABSTRACT
Authors analysed clinically two groups(group A40 years: 126 eyes) of 313 primary retinal detachment patients who have received operation and subsequent follow-up study for at least 3 months. The frequency by age was shown double peak at twenties and at fifties. Retinal dialysis and inferior temporal breaks in group A was shown more than those in group B, but superior temporal breaks was more occured in group B. The success rates of the first operation in group A were a little higher than those in group B. And in the case of successful eyes by the first operation, residual subretinal fluid were absorbed less than 1 day. Fish mouthing, glaucoma and chroidal detachment as intraoperative and postoperative complication occurred more frequently in group B. After the first operation, inadequate absorption of the subretinal fluid was more frequent in group B, recurrence of hole was more frequent in group A, but there's no statistical significance in above.