Almost everyone sees a few floaters at one time or another. They can occur more frequently and become more noticeable as you grow older. If you notice a sudden change in the number or size of floaters, you should contact your optometrist right away.
A retinal detachment occurs when the retina partially or completely peels away from the back of the eye. Once a detachment occurs, retinal function decreases, and light signals cannot get back to the brain to be processed into seeing. Depending on the severity of the detachment, vision loss can be severe and permanent.