Chris--yes, vision problems can be an effect of PD, and well as the dry/oily skin conditions you describe. Peter was at the ophthalmologist's last week be- cause his vision was blurred, and no change in his glasses was prescribed. We have read that it is not unusual for PDers to have eye problems which are not detectable on examination. Another version is tracking problems when reading, due to PD's effect on the eye muscles, I think. Dry eyes cn be a problem, and Peter uses "artificial tears" several times daily to relieve this. The flaky but oily skin sounds like blepharitis, not unique to PD but often present. Eyelids are vulnerable, and must be carefully and regularly cleansed to avoid infection and irritation.Scalp is affected, and skin overall can be very dry and itchy. These are some of the delightful "lesser" side effects of PD, of which the list seems almost endless! :-( Glad you are able to help your folks by monitoring the list for them.Stay connected...