Transscleral neodymium-YAG cyclophotocoagulation. A histologic study of human autopsy eyes
C. Hampton and M. B. Shields
Duke University Eye Center, Duke University Medical Center, Durham, NC 27710.
Transscleral cyclophotocoagulation was performed with a neodymium-YAG laser
in the free-running mode (20-ms pulses) on eight human autopsy eyes.
Variables studied were laser beam position and angle, defocusing, and pulse
energy. Based on gross and histologic evaluation of the treated eyes, a
tangential beam placed 1.0 to 1.5 mm behind the limbus, with maximum
defocusing and an energy setting of approximately 8 J, appears to provide
the optimum probability of damaging the ciliary processes.