Naevus of Ota is a pigmentary condition also known as nevus fuscoceruleusopthalmomaxillaris. It presents as a collection brown-blue pigmented spots affecting the skin and mucous membranes in a unilateral dermatomal pattern corresponding with the first and second branches of the trigeminal nerve. Nevus of Ota can be congenital or develop after birth as late as adolescence. Unlike other birthmarks which are generally superficial Naevus of ota is also known as dermal melanocytosis due to the dermal location of the melanocytes. It effects the mid to upper areas of the face, and may also include the Sclera of the eyes.
Similar to Hori’s Naevus, the Naevus of Ota responds well to Q Switch laser treatment.
The number of treatments required depends on the intensity of pigment and depth of pigments. A comprehensive consultation by the experienced Dermal Clinicians at Melbourne Laser & Aesthetic Centre is necessary to properly assess the condition.
Immediately post treatment the pigmented area will appear darker in colour with the general area mildly inflamed. The treatment is kept comfortable with a cool stream of air or contact cooling. The colour of the pigmented areas may appear darker following treatment. As the pigment in the Naevus of Ota is dermal it will not flake off, but rather will gradually lighten over the following weeks. The number of Q Switched laser treatments required depends upon the intensity of pigment, the placement within the skin and the type of laser modality combination used.