You searched for: “photocoagulation
photocoagulation (s) (noun), photocoagulations (pl)
Condensation of protein material by the controlled use of an intense beam of light: Photocoagulation is used especially in the treatment of retinal detachment and the destruction of abnormal retinal vessels, or of intraocular tumor masses.

Photocoagulation is a technique that uses intense light energy, as from a laser, to produce scar tissue used in treating certain eye disorders, in medical and biological research, etc.