What are the treatment options for nevus of Ota?

Nevus of Ota, also called oculodermal melanocytosis, causes blue-grey or slate-coloured pigment in skin supplied by branches of the trigeminal nerve. It commonly affects one side of the face and may involve the white of the eye. The pigment sits deeper than ordinary surface tanning, so creams alone may not provide the desired change. An assessment should record the colour, depth, location and any eye involvement before treatment.

A dermatologist may discuss laser toning, which uses repeated low-energy passes to target pigment, or picosecond laser treatment, which delivers very short pulses to fragment pigment. The exact device, settings, interval and number of sessions depend on your skin tone and the area treated. Temporary redness, swelling or uneven lightening can occur, and pigment can sometimes darken after inflammation. Sun protection and following aftercare instructions help reduce that risk. Do not treat pigment close to the eye without appropriate specialist protection.

Arrange a dermatology review if the patch changes in colour, texture or outline, or if a new raised area appears. Seek prompt assessment for eye pain, vision changes, redness inside the eye or new light sensitivity. These symptoms need evaluation rather than cosmetic laser treatment alone.

Ask which laser fits the depth and colour of your pigment, how the eye area will be protected, what temporary changes to expect, and how treatment will be adjusted if your skin becomes darker after a session.