Well, eye shingles is an infection caused by the virus that causes chickenpox. And according to some experts, one or more nerves and the skin over them are affected. Typically, when it occurs, your eye may become red, swollen, painful, and very sensitive to light. Also, watery eyes and blurred vision may occur too. In common, the rash can spread to the upper or lower eyelids. Usually, shingles causes abnormal sensations in the affected part of the body a few days before the rash appears. And you may feel deep pain, itchy, and extreme sensitivity to touch. So just take care of it.