I have developed a sight problem within the last 5 years, where part of
my peripheral visual field has gone in both eyes. The scotoma (I think
that's the right word) are just above the central vision. If I stand in
front of an Amsler grid and blink each eye separately, I can see dark
areas where the vision has gone. My right eye is worse, it's a
triangular area, arced at the bottom, the left eye just appears to be a
line going from outside to above centre. Luckily they don't overlap too
much so I can see pretty well still, but where they do overlap, a line
of light is apparent, just like I've stared at, e.g. a striplight for
too long. I have been too & fro to eye specialists and had many tests
(including MRI scan), but they are stll unclear as to what has caused
this problem and whether it's likely to get worse.

I had a field test at the optician in 2002 when I first started
noticing something and that was more or less clear. I 've had several
field tests over the last year and they all show up blind areas very
similar to what I see when I do my own blink test. But (fingers
crossed!) they don't seem to be getting worse. However, I have my
doubts as to whether a field test can show up small variations, the
printed results look pretty rough & ready.

According to the specialists, the area of loss closely corresponds to
optic pits I have in the optic disc area of both eyes. I recently had a
OCT photo done and that confirmed that the retina is thin around this
pitted area. The specialists have discounted glaucoma mainly due to
normal pressure and my age (50). They think the cause may be something
to do with exercise induced migraines I get from time to time, but very
infrequently and only when I work out (running) really hard, e.g. it's
been over a year since the last one. I only mentioned the migraines to
them because what I see now is similar to the starting part of the
aura.

I would really appreciate other opinions on this, or similar
experiences, just to try and home in on what is going on, because at
the moment, I don't know whether this is a progresive thing or a one
off?

Thanks, Rob