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The retina is the inside lining of the eye. It turns light into nerve signals. These signals are then sent to the brain where they become the images you see. The retina may be torn or detached due to aging, an eye injury, or other problems. Tears and detachments are painless.

Presbyopia is the loss of close-up focusing. With age, the lens in the eye hardens and can't change its shape as easily. It then can't focus clearly on close objects. This makes them look blurry.

Blood in your urine is a condition called hematuria. Most of the time, the cause is not serious. But blood in the urine should never be ignored. Read on to learn more.

It's important to know how to help someone who is choking. This sheet can help.

As you age, you are more likely to get flashes and floaters in your vision. Here is an explanation of what these are and when to get medical care.

This assessment is valid for women between the ages of 21 and 69 who have had sexual intercourse at least once and who have not had a hysterectomy with removal of the cervix.

This test looks for parasites and their larvae or eggs in a sample of your stool.

When you need an IM injection in your hip, another person must help give you the shot. Read on to learn how this injection is given.

You are going home with pins in place. These pins are holding a broken or dislocated bone in place. Here's what you need to know about home care.