Detailed answer

Hyperpigmentation is a condition characterized by darkening of certain areas of the skin. It is typically caused by an overproduction of melanin, the pigment that gives color to the skin. Constant use of contact lenses does not directly cause hyperpigmentation. However, contact lens wearers may sometimes experience a condition called periorbital hyperpigmentation, which is darkening of the skin around the eyes. This can be attributed to factors such as allergies, irritation, or inadequate hygiene related to contact lens use. If you notice any changes in the skin around your eyes while wearing contact lenses, it is important to consult a dermatologist or an eye care professional for a proper diagnosis and treatment.