18/09/2026
Did you know the cold sore virus can affect your eyes?
A dendritic ulcer is a branching, tree-like sore on the cornea, usually caused by the Herpes Simplex Virus. If you experience unexpected eye pain, redness, watering, sensitivity to light, or blurred vision, it is crucial not to ignore it.
Early diagnosis and antiviral treatment by an eye care professional are essential. Protect your vision; if your eye is red or painful, seek medical help immediately!