YAG capsulotomies have the potential to produce very big floaters.  If your
doctor checked and verified that it isn't a retinal tear/detachment, then
everything will be OK.  The floater will likely "settle out" after awhile.
Exact time varies and isn't predictable.

++++++++++++++++

What a coincidence!  I have exactly the same thing.  I had cataracts
removed in both eyes (a week apart) last month.  The first eye was fine,
but I had terrible glare in the left eye (a diagonal beam would appear
over any light).  The doctor said I had a "wrinkle" behind the lens, so
he used the laser on it (capsulotomy). He told me I would probably have
some floaters for awhile.  Well, I've had floaters in the past (black
specks or hairlike floaters).

That beam was gone, but it was replaced by a starburst when I look at
lights.  In my line of vision there is what I called a smear or a wispy
cloud.  After a few days I went back to the doctor.  He said he could
see it very clearly and that it was a piece of a viscous material that
had probably broken loose during the laser procedure.  He said it was
like a gel.  He also told me that it might take a couple of months for
it to move, but that it would move in time to an area of the eye where I
wouldn't see it.

I guess we'll just have to be patient.  It sure is annoying, isn't it?

Diane M