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info@scarsandlasers.co.nz
15 Green Lane East, Remuera, Auckland, New Zealand
Monday - Friday: 7:45 am - 5:00 pm
Nevus of Ota is a benign skin condition characterised by bluish-grey or brown patches, typically appearing on one side of the face around the eyes, forehead, and cheeks. It is caused by increased pigment-producing cells (melanocytes) in the dermis and is more common in individuals with darker skin tones. Having a Naevus of Ota, while medically harmless, can be a significant source of emotional distress for individuals due to its noticeable appearance.
The exact cause of Naevus of Ota is still unknown, though it is thought to be linked to abnormalities in melanin-producing cells. Approximately half of the cases are present at birth, which is why it is classified as a birthmark. However, Naevus of Ota can also develop during adolescence or early adulthood.
Naevus of Ota results from an accumulation of melanocytes within the dermis, the deeper layer of the skin. These cells overproduce melanin, the pigment responsible for skin colour, leading to the characteristic bluish appearance due to the Tyndall effect, where light scatters through the dermal layers. Treatment targets these deep melanocytes using laser therapy, which breaks down excess pigment without damaging surrounding tissues. While multiple sessions are often required to achieve the desired results, these treatments can greatly reduce the visibility of the nevus, providing emotional relief and enhancing quality of life for those affected.
Yes. Laser treatment is the gold standard for improving Naevus of Ota. Lasers work by targeting deep pigment particles while minimising damage to surrounding skin. Multiple treatment sessions are usually required, with gradual lightening seen over time. Complete clearance may not always be possible, but significant improvement is common.
If you have an unusual bluish-grey or brownish discolouration on your skin, we recommend scheduling an evaluation with one of our board-certified dermatologists to determine the best course of treatment for you.
Laser treatments such as PicoWay, can significantly lighten or eliminate the pigmentation in most cases. However, complete removal will require multiple sessions and results can vary based on skin type and pigmentation depth.
Most patients require 4-6 sessions, spaced several weeks apart, to achieve noticeable improvement. The exact number depends on the size, location, and intensity of the pigmentation.
Although lasers are highly effective for skin pigmentation, they are not typically used on the sclera due to the delicate nature of the eye tissue and the risk of damage. This needs to be discussed with your specialist dermatologist.
Naevus of Ota is a benign (non-cancerous) pigmentary condition and does not pose a health risk in most cases. However, because the pigment lies deeper in the skin and may involve tissues around the eye, regular assessment by a dermatologist is recommended. In rare cases, associated eye involvement may require review by an ophthalmologist.
The pigmentation can darken or become more noticeable over time, particularly during hormonal changes such as puberty or pregnancy, and without treatment it typically persists throughout life.
Naevus of Ota is best treated with pigment-targeting lasers, particularly picosecond laser, which is effective at reaching deep dermal pigment. Treatment selection and parameters are carefully individualised to minimise risks such as post-inflammatory hyperpigmentation, especially in darker skin types.
ACC funding eligibility is determined by the Accident Compensation Corporation on a case-by-case basis. Approval is dependent on injury acceptance, clinical indication, and ACC policy at the time of application. Not all treatments offered at Scars & Lasers are ACC-funded. Private fees may apply for unfunded components of care.
