Hi i have had a floater in my right eye on and off for a year had my eyes tested january last year should i be worried ?

Probably not: This is called a posterior vitreous detachment. The gel inside your eyes, vitreous, has partially liquefied & is pulling away from the retina which lines the back of your eye. This is a normal with aging. This causes floaters. The only concern is if it begins to pull on the retina & tears it. Retinal tears can lead to retinal detachment & blindness. Go to your doctor immediately if you start to.

No: While it is important to have your eyes examined yearly for this , if you have had no change in the status of the floater then no need to worry. If you have flashing lights and /or loss of vision then you need to worry and be seen by anj ophthalmologist soon.