I can relate to what ever is been said. In my medical nursing course we are treating ocular conditions. If i can remember rightly, we learned that we have the aqueous humor and the virtuous humor and that the aqueous humor helps to nourish the lens and iris. It's being produced often by the ciliary body but with the Virtrous humor it remains the same with no change in amount. On top of that we learned that Acute close angle glaucoma can cause instant blindness that is why it is considered an emergency. Thank you so much sir i have learned something to top up what i am learning in school.