American Society for Laser Medicine and Surgery, Inc. (ASLMS) Jun 30 2026 Reviewed 445 nm diode lasers have already been used successfully and safely for cholesteatoma surgery. Due to the high absorption in hemoglobin, they generally provide a good combination of cutting precision and hemostasis. However, the ablation of low-absorbing and strongly scattering anemic tissue, such as keratinizing squamous epithelium of the cholesteatoma, becomes challenging at low laser power. The initiation of