Retina: pathology of neodymium and ruby laser burns.

Chorioretinal lesions hiave been prodluced in monkeys during experitments with ruby and neodlymium lasers. Most of the energy from the ruby laser (wavelength 6943 angstroms) is absorbed by the pigment epithelium, where the greatest damage appears. With the neodymium laser (10,600 angstroms) the neural portions of the retina absorb more of damage than the pigment epithelium and adjacent tissues.