It is an information to state that any action,process or function has begun.It is the US abbreviation for the name of the Canadian Province of Ontario.It is a preposition mean â¦ ing that one object is in contact with, and usually above, another object.
Sparing the nucleus: Cortical cataracts are in a layer of the lens outside of the nucleus which is the center of the lens. They are sometimes congenital. Depending upon the density they may disturb the vision but sometimes are thin enough not to be a problem.
A cataract is the clouding of the natural lens in your eye. A clouded lens can be compared to a window that is frosted or fogged with steam. Roughly 90% of cataracts are simply due to the normal aging process; and cataracts can not be reversed or made to âgo awayâ with medication or eye drops.