From the experience of one of Dr. Kwok's patient here, Dr. Kwok said that a proper FOV should take at least 90 minutes. So it's possible that the longer the FOV it is, the lesser chance of developing frill afterwards. Of course you can say it also depends on how does the surgeon shave the vitreous, so thus the saying of a good (result) FOV depends on the surgeon's skills. Then the concern of longer procedure is the higher chance of hypotony (if sutureless) and oxidation of lens which leads to cataract formation speed-up.