Reducing Radiation from Medical X-rays

Xolair: Uses, How It Works, and Common Side Effects

Xolair is used to treat types of allergic asthma, nasal polyps, chronic hives, and to reduce the risk of severe food-related allergic reactions. It should not be used for asthma attacks or the emergency treatment of allergic reactions.

• Xolair

Using a metered dose asthma inhaler and spacer

Watch this video to see how to use a metered dose asthma inhaler and spacer.

Tagrisso: Uses, How It Works, and Common Side Effects

Tagrisso is used to treat adults with non-small cell lung cancer (NSCLC) whose tumors have certain mutations in the Epidermal Growth Factor Receptor (EGFR) gene.

• Tagrisso

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

Baby

A baby's soft spots (fontanels) close when the skull bones fuse together. See how.