Otas Nevus, also known as "nevus of Ota" or "ocular melanosis," is a rare congenital pigmented lesion that appears as a birthmark on the face, particularly around the eye area. This condition is named after Dr. M. Otas, who first described it in 1939, and refers to a specific type of melanocytic nevus.
The Otas Nevus is characterized by the presence of hyperpigmentation, manifesting as bluish-gray or slate-blue patches on the skin. These pigmented areas often involve the conjunctiva, sclera, eyelids, and sometimes the surrounding areas on the face. It is typically unilateral, affecting only one side of the face, and most commonly occurs in people with Asian, African, or Hispanic ancestry.
The developmental cause of Otas Nevus is still not precisely understood, but it is believed to result from the abnormal migration of melanocytes during embryonic development. This nevus is generally non-progressive and does not pose any health risks in most cases. However, due to its cosmetic appearance, individuals with Otas Nevus may experience emotional distress or self-esteem issues.
Treatment options for Otas Nevus include a combination of various cosmetic procedures, such as laser therapy, cryotherapy, or surgical excision, depending on the size, location, and personal preference of the individual. Regardless of the treatment method chosen, it is important to consult with a medical professional or dermatologist to ensure the best course of action for each specific case.
In conclusion, Otas Nevus is a rare congenital pigmented lesion characterized by the presence of bluish-gray or slate-blue patches on the skin around the eye area. Although typically benign, it may impact individuals emotionally due to its cosmetic appearance
