For those interested, here is an article called "Evaluation and Management of Herpes Zoster Ophthalmicus" from American Family Physician magazine. This is a shingles attack involving the eye.
The list of possible eye complications is long and nasty. The ophthalmologist told me I was having some keratitis, but there are several different kinds, so I'm not sure what that means. At this stage, it is hard to judge how the eye feels and how well I can see out of it, independent of the facial nerve pain, which is ongoing. I'm just enduring the healing process and hoping for the best outcome when it is done.