Please provide your email address to receive an email when new articles are posted on . In March, three societies announced a new universal definition and classification of HF designed to standardize ...

Neurotrophic keratitis, also known as neurotrophic keratopathy (NK), is a degenerative disease of the cornea caused by damage to the ophthalmic branch of the trigeminal nerve. A healthy cornea and a ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...