We performed 115 scleral-buckling procedures for primary rhegmatogenou
s retinal detachments in which the argon endolaser drained subretinal
fluid. The laser was set at 0.80 to 1.25 W and 0.5 second; the endolas
er probe was held adjacent to, but not touching, the choroid. The proc
edure was successful in 112 of 115 (97.0%) patients. When inadequate d
rainage occurred, the use of the penetrating diathermy tip was success
ful. The only major complications were subretinal hemorrhages that had
migrated posterior to the buckle in two patients (1.70%), retinal per
foration in one patient (0.87%), and retinal incarceration in one pati
ent (0.87%). Laser drainage caused a slow, controlled drainage of subr
etinal fluid.