Changing eye color using lasers typically involves a procedure called laser iridotomy or laser iridoplasty. The specific wavelength and wattage of the laser used can vary depending on the technique and the desired outcome.
In laser iridotomy, which is primarily performed to treat certain eye conditions such as glaucoma, a laser with a wavelength typically in the range of 800 to 1064 nanometers (nm) is commonly used. The wattage used in laser iridotomy can range from a few milliwatts (mW) to several watts.
However, it's important to note that laser procedures for cosmetic purposes, specifically for changing eye color, are not widely recognized or approved medical practices. Altering eye color for cosmetic reasons using lasers is considered experimental and carries potential risks and complications. Therefore, it is essential to consult with a qualified ophthalmologist or eye specialist for accurate and up-to-date information on any procedures related to changing eye color.