Co₂ laser in vitreoretinal surgery

Radiation from a CO₂ laser has the dual effect of phototransection and photo‐coagulation. Incisions have been made in scleral‐chorioretinal tissue, lens tissue, and the vitreous body (with and without membrane formation). Results indicate that the CO₂ laser may be useful in intravitreal surgery. Its simultaneous cutting and coagulating properties may make the experimental trans‐vitreal chorioretinal biopsy reported by Griffin et al [12] and the full‐thickness ocular wall resection for small melanosarcomas of the choroid reported by Peyman and Sanders [13] clinical possibilities in the not too distant future. Finally, the effects of CO₂ laser radiation on the normal human lens suggests the possibility of the dissolution of cataracts by laser irradiation.