Laparoscopic adjustable gastric banding

Macular degeneration

This animation shows the process of macular degeneration in the eye. The macula is the part of the retina that distinguishes fine details at the center of the field of vision. Macular degeneration results from a partial breakdown of the insulating layer between the retina and the choroid layer of blood vessels behind the retina. Macular degeneration results in the loss of central vision only.

• Vision

How to use a peak flow meter

Improve asthma control by using a peak flow meter, demonstrated in this video.

Can saline irrigation help nasal allergies?

In a recent survey, almost 90% of family physicians recommended nasal saline irrigation for sinus and nasal symptoms.

Carotid angioplasty and stenting

Carotid angioplasty and stenting — See how this stroke treatment is done.

Fundoplication

Fundoplication video shows this surgical treatment for stomach acid reflux and heartburn.