visual field changes

my retina specialist has consistently said I have mild dry ARMD.  in June, 07, my visual field in the ARMD and glaucoma eye was near normal.  Two weeks ago, I had another visual field taken and was told the eye has worsened significantly.  The glaucoma specialist says it's probably the retina, based on her interpretation of the visual field data.  

I am seeing much worse in that eye, with a graying of the central vision.  I also have severe floaters which have been increasing over the last six months.  Each time checked, I've been told no tears.  Floaters may have fooled me that there was no change in the central vision due to retina changes.

Are such 'rapid' changes in visual field unusual?  

Is it possible for any other factor to be the main contributor to my dramatic vision change/loss in the left eye, other than worsening macula conditions?  

[John C Hagan III, MD, FACS, FAAO]

If you see both a retina and glaucoma specialist and they both feel the change is due to ARMD then I would accept that as the cause.

VIsual fields can deteriorate slowly or rapidly. Other things can cause VF changes but you've seen two qualified eye MDs that have excluded these.

JCH III MD