The choice of which of these procedures is most appropriate for the repair of a retinal detachment is dependent on many factors. These include the location of the responsible retinal tears and the presence or absence of scar tissue on the retina. The decision of which method of retinal detachment surgery is best can only be made after a careful evaluation. Fortunately, with these techniques it is possible to successfully repair most retinal detachments. While most retinal detachments are successfully repaired with a single operation, in some cases more than one operation may be needed.