Sure, Pete, my pleasure.  Well, it is true that myopic eyes are longer
than "normal" eyes (I put that in quotes because some of my best
friends are myopes and I consider them to be fairly normal)...but
still, when eyes are measured for a lens implant prior to surgery, the
A-scan machine that measures the length of your eye takes that into
account.  A long eye requires a weaker lens implant and a short eye
requires a stronger lens implant.  It is very rare with a good A-scan
machine to err on choosing the correct implant strength.  When I bought
my current practice and equipment 4 years ago from a retiring
ophthalmologist, his old A-scan machine was not so great, and I had to
do 4 lens exchanges in a year (too many!).  I bought a new machine 3
years ago and haven't had to exchange one lens since. You should ask
your doc to remeasure your eyes if he hasn't already done so, prior to
exchanging your implant.

A lens exchange is usually fairly simple, but if your lens is
dislocated slightly, which it sounds like it is (the reason for the
edge glare at the side of the implant), then whether this is easy or
not depends on whether the posterior lens capsule (back of the original
cataract) was damaged or "popped open" at the time of the initial
surgery.  If it was, then when your implant is removed, vitreous gel
from the back of the eye will come forward through the defect in the
membrane.  This could cause tugging on the retina leading to either
retinal tears/detachment or swelling in the retina with subsequent
blurred vision.  If the membrane (posterior lens capsule) is intact and
the vitreous is being held back, then the surgery is usually not too
difficult.

You need to decide if you feel comfortable with this surgeon or not.  I
would CERTAINLY insist on having him fix this eye before working on the
other eye.  If you lack confidence in him, you may want to have someone
else do the lens exchange.  That's a tough call, keeping in mind that
everyone makes mistakes and/or has occasional complications (yes,
including me).  If you want to drop into the Orlando area, I'd be happy
to help you...you could come see Mickey Mouse too!  Good luck to you.
--Rick Cohn, MD