It is very bad to have herpes on eyes. There are two kinds of herpes virus which can cause eye infections, one can cause a cold sore and the other can cause chicken pox, both of which might cause herpetic eye disease. According to different virus and different infection part, there are various possible eye diseases. Varicella-zoster virus, culprit of shingles and chickenpox, would cause herpes zoster ophthalmicus; while herpes simplex type 1, root for cold sores on lips and mouths, would cause herpes simplex keratitis. No matter what kind of herpes infections you got, it is surely painful. Both develops excruciating pain, rash and redness around eyes, sensitivity to light and swelling or cloudy cornea. As to long term effects, without proper and timely treatment, both diseases would develop to blindness. Seeking immediate treatment is a must. Herpes infection might last anywhere from one month to months, or even years. The sooner you take treatment, the less damages and pains it would bring to you.
