Ocular herpes is typically caused by what?

Ocular herpes, specifically herpes simplex keratitis, is usually caused by contact with infected skin. This can occur when the herpes simplex virus, often found on the lips or facial area of an infected individual, spreads to the eye through direct contact. The virus can also be transmitted through hands that have touched an infected area and then come into contact with the eye. This highlights the importance of hygiene and avoiding contact with the skin around the eyes if there is any potential for infection.

In contrast, other factors such as injury to the eye or exposure to UV light do not directly cause ocular herpes but may lead to eye conditions or exacerbate existing issues. Shared cosmetics can pose a risk of other bacterial or viral infections, but they are less commonly associated with the specific transmission of the herpes simplex virus compared to direct skin contact with an infected person.