Audrey, If there is trouble with the eyes, it should not necessarily follow that this has anything to do with PD, or PD Plus. Difficulty of opening the eye or keeping it open may indicate dry eye, a condition that eventually will cause damage to the cornea of the eye. Treatment with doctor recommended eye drops will help. Not just any kind will do! My left eye is deteriorating fairly rapidly. A new prescription did not help. My ophthalmologist referred me to a neurologist-ophthalmologist and he suspects the beginning of glaucoma in that one eye. Please go see a good eye doctor. Best wishes, Will Will A. Kuipers 79 / 71 <[log in to unmask]>