The story
From pan- + retino- + photocoagulation.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A laser-based ophthalmic procedure in which photocoagulation is applied across a wide area of the retina to ablate abnormal or ischemic retinal tissue, commonly used to treat proliferative retinal diseases such as diabetic retinopathy. Full definition →
From pan- + retino- + photocoagulation.
Etymology from Wiktionary, CC BY-SA 4.0.