Diagnosed with GCA/TA 8 months ago when I rocked up at local A&E dept having lost sight in right eye, started on 80mg pred, now on 15mg. Also on Alendronic Acid tabs once a week to prevent osteoporosis. Am prone to dizzy spells, any idea if this is the tabs or my vision problems. I suspect vision, as they seem to occur if I have been watching TV or reading for any length of time (both are still problematic). Neither GP nor Ophthalmologist can give explanation. Anyone else have similar problems?