Shingles of the eye can cause lasting vision impairment

There are about one million cases of shingles in the US each year, and up to 20% of those involve nerves in the head, where the infection can affect various parts of the eye. If a case of shingles involves the upper face, forehead, or scalp, it is important to see an ophthalmologist promptly, because complications can lead to eye damage and possible vision impairment.