What do you mean by clear up?
This is different to what the consultant meant by clear up. A PVD can fully detach from the retina in approximately four weeks but the vitreous floaters created at this time will persist longer although they can break up into smaller floaters which may be easier to ignore. Once the vitreous gel has fully detached there is then less risk of a retinal detachment and I presume this is what your consultant meant by clear up.
There is usually no disturbance to the quality of your vision with a PVD unless it causes some traction on the macula at the central part of the back of the eye. This is rare but I would suggest if you are having difficulties with your vision to seek further opinion with your optometrist who can refer you to your local eye clinic if necessary.
I have posted this before but I think it is a good information leaflet.
http://www.goodhope.o...ments/eyedept/pvd.htm