Sentence:  If the leak allows bulk flow of aqueous, the rest of the <WSD>bleb</WSD> can collapse, allowing apposition of the inflamed inner <WSD>bleb</WSD> walls, which are likely to adhere. If such adherence is over most or all of the <WSD>bleb</WSD> area, <WSD>bleb</WSD> failure is probably inevitable. 
Meaning of the word marked with <WSD> tags:  A large vesicle or bulla, usually containing a serous fluid.