Foreign object in the eye
A foreign object in the eye is anything that enters the eye
from outside the body and does not belong there. It
causes immediate symptoms, but may or may not be
serious, depending on the object.
Cataract
Cataracts are dense, cloudy areas that slowly form in the
lens of the eye. They are common in older people, but can
also be present at birth or caused by medications,
disease, trauma, or radiation.
Eye floaters
Specks and strings may appear in your field of vision.
These are called eye floaters, and are most commonly
caused by age-related changes to the eye.
Corneal abrasion
A minor scratch to the eye's cornea, which the thin layer
that covers the iris and pupil, is called a corneal abrasion.