When the meniscus ganglion or certain branch of the trigeminal nerve is infected by herpes zoster bacteria, those who are receiving the radiation therapy or immunosuppressant treatment are liable to suffer ocular herpes. When a person suffers from ocular herpes, his skin is flushing and swelling, and appears innumerable transparent and banding ranked blisters with varied size. In the preliminary period, the blisters are colorless and transparent, and then become nubecula and fester, and they become crust and drop within weeks. Because they intrude corium, they will leave perpetual scars, often complicated by keratitis and iris eyelash inflammation, which influence vision. Those whose case is serious have the symptoms of having a fever, fear of cold and discomfort or swelling and painful lymph gland.
