Argon vs krypton laser lesions: is the wavelength more important than the power

Conventionally, unnecessarily intense laser power is advocated for the treatment of subretinal neovascular membranes. Among the four variables determining the adequacy of the laser lesion, namely spot size, duration of exposure, wavelength, and power, the latter is seldom if ever directly considered. Patients with subretinal neovascular membranes may be satisfactorily treated using the unfiltered argon blue-green laser wavelengths and reduced power as an additional option to the filtered argon green and wavelength or krypton yellow or red wavelengths.