Nevus of Ota is a rare congenital hamartoma the dermal melanocytes causing blue-grey hyperpigmentation eye and adnexa. The condition usually unilateral but rarely it can be bilateral. A 28-year-old lady from West Bengal, India, visited Ophthalmology outpatient department with complaints blackish discoloration left side face periorbital region. On examination, large (5x6 cm) lesion was noted on ...