I recently got iritus in my eye i'm also on predisone for my ankylosing spodylytus does this medication help with my eye to?

Yes: There is a genetic marker, hla-b27, that when present, is frequently associated with iritis and ankylosing spondylitis. Oral Prednisone can help treat iritis, but usually topical steroid drops are also used to treat the iritis. Most often, the ophthalmologist and rheumatologist will work together to make sure all inflammation is controlled!

Prednisone helps: Your systemic disease (ankylosing spondylitis) is definitely associated with your iritis, and both will respond to systemic corticosteroids, particularly for the acute exacerbations. It's usually best however, to treat the ocular inflammation with topical corticosteroids. Other steroid sparing drugs can be better for the long haul for both diseases. Your rheumatologist would help here.

Need 2 MDs...: Although systemic steroids prescribed by your internist/rheumatologist can help with iritis, it's important to have an eye md (ophthalmologist) follow your iritis and prescribe you steroid drops to calm the inflammation as well as other kinds of drops to help avoid complications of iritis like glaucoma and cataract.