Nevus of Ota, also known as palpebral nevus, is a pigmented birthmark characterized by greenish-brown spots around the eyes that is common in Asians. About half of the patients are found to have the disease at birth, but some of them start to find it in childhood, and some patients only gradually show it in adolescence. The lesions have indistinct borders, and the color of the spots in the lesions can be monochromatic or both of the above-mentioned colors, and the color varies in shades. Some patients start to be stable for a long time in childhood, and most experts believe that it will be more stable after puberty, but some people still have the tendency to grow slowly until they are about 30 years old. The disease can be distributed unilaterally and bilaterally, with unilateral nevus being the most common. Laser – the preferred treatment solution for nevus of Ota Because there is a great difference between the lesioned tissue and normal tissue, and different lesioned tissues have different nature and different depths, so their absorption of laser wavelength is different, so different wavelengths of cosmetic laser have their own indications for the skin around the eyes and eyes.