Injuries are most common and can be caused by physical, chemical, and radiation causes. Infection can be a cause but is much rarer. Regardless, a qualified ophthalmologist should be consulted.
Corneal Ulcer.
blindness caused by corneal disorders
One of these is called acne. Untreated or under-treated, it can cause scaring and pitting of the skin.
how/when did you get the abrasion and what was rxed? if you got the abrasion from not removing your contacts or not cleaning them properly than no, i wouldn't wear them. if it was 4 months ago then yes. I'm sure its fine for one night, however don't sleep in them. still need more info for a good answer... best way to know is call the optometrist you saw and ask him/her.
Pitting is when there are small holes starting to appear in steel often caused by corrosion/rust
Abraison
Particles of sand or dust rubbing across the surface of rocks is called abrasion.
Most wind abrasion is caued by larger particles of soil called what
abrasion
It is a form of mechanical weathering.
An abrasion of the uterus doesn't have a special name. It can be caused by an endometrial ablation procedure which is a procedure that destroys the lining of the uterus.
Smooth, polished bedrock