I am in my early 70s.  I have utmost faith in meyedoc whom I will see
in a couple of weeks.  At the last exam, based on my vision complaints
and testing, it was determined that I finally passed the threshold for
cataract surgery and lens implants.  We had a thread here on lens
types a while back.  I have no problem with having to have this done.
Now, I also suffer from mild (little to no damage) glaucoma/elevated
IOP. The R-eye is the worst in both areas.  The last vision field test
was done the same day as the cataract determination.  For the first
time, noting a small cluster of 3 "hits" in one area of the printout,
he said he was concerned.  We both recognize that a single test does
not a problem make, hence I will see him again in a couple of weeks
for retest.
My question is this:  If my eyes are so bad that I require cataract
surgery, how can I be expected to see clearly enough to pass a vision
field test?  I had a helluva time (worse than usual) just seeing the
blinking lights.  I had planned on having the cataract surgery done in
the spring, but could push it up if "clarifying" that issue, would
permit a better assessment of the glaucoma problem.
Again, I would appreciate your enlightment on this, so I can properly
discuss this with meyedoc when I see him.
TIA
 Roy