If your eye won't shut all the way, you could get exposure keratitis. This condition causes painful eyes and blurry vision. WebMD tells you what causes it and what to do about it.

Acyclovir is highly effective for treatment and prophylaxis of herpes simplex epithelial keratitis and immune stromal keratitis, and for prevention of recurrent infectious epithelial keratitis ...

The European Commission has approved SIFI's Akantior as the first therapy anywhere in the world for acanthamoeba keratitis (AK), an ultra-rare parasitic infection that can lead to blindness.

Making the cut This study reports the development of a CRISPR –Cas9 therapeutic to target herpes simplex virus 1 and treat herpetic stromal keratitis in mice.

Article CAS PubMed Google Scholar Tumpey, T. M. et al. Absence of macrophage inflammatory protein-1α prevents the development of blinding herpes stromal keratitis. J. Virol. 72, 3705–3710 (1998).

Cold sores are a symptom of oral herpes, which is caused by the herpes simplex virus. Angular cheilitis is less common and has several different causes. Each condition is treated differently.

When designing a workout, it's important to move in all of the body's planes. What are they? Here's an anatomy primer to help.