Abnormal conjunctiva morphology Conjunctival hyperpigmentation 2025-04-26T14:44:10Z Increased pigmentation of the conjunctiva, characterized by brown or black discoloration due to melanocytic proliferation or pigment deposition. It may be associated with benign conditions such as primary acquired melanosis or malignant transformation into conjunctival melanoma. Hyperpigmentation of the conjunctiva Pigmented conjunctiva Conjunctival melanosis