Neurotrophic keratitis caused by trigeminal nerve palsy secondary to a cerebellopontine angle epidermoid cyst: A rare case presentation.

Neurotrophic keratitis (NK) is a rare corneal disorder characterized by decreased corneal sensitivity and impaired corneal healing due to damage or dysfunction of the trigeminal nerve. We present a case of NK caused by trigeminal nerve palsy secondary to a cerebellopontine angle (CPA) epidermoid cyst. The patient exhibited corneal epithelial defects, persistent corneal ulceration, and decreased corneal sensation. Prompt diagnosis and management of the underlying brain lesion were crucial for successful treatment of the disease.