@biogirl let's I explain you something

about vitreous and what is happen with it

first of all, I don't know who you asked and what does he actually know about ophthalmology... but to say that there is no replacement is absolutely rude statement which I can address to child or someone with very low knowledge in this speciality...

so, dont take it into account.

as I stated - vitreous is 99 water, so is aquous.

just try to read about the vitrectomy a little bit more

...