Intravitreal injection


An intravitreal injection is a shot of medicine into the eye. The inside of the eye is filled with a jelly-like fluid (vitreous). During this procedure, your health care provider injects medicine into the vitreous, near the retina at the back of the eye. The medicine can treat certain eye problems and help protect your vision. This method is most often used to get a higher level of medicine to the retina.


The procedure is done in your provider's office. It takes about 15 to 30 minutes.

Why the Procedure Is Performed

You may have this procedure if you have:

Sometimes, an intravitreal injection of antibiotics and steroids is given as part of routine cataract surgery. This avoids having to use drops after surgery.


Side effects are rare, and many can be managed. They may include:

Discuss the risks for specific medicines used in your eye with your provider.

Before the Procedure

Tell your provider about:

After the Procedure

Following the procedure:

Report any eye pain or discomfort, redness, sensitivity to light, or changes in your vision to your provider right away.

Schedule a follow-up appointment with your provider as directed.

Outlook (Prognosis)

Your outlook depends mostly on the condition being treated. Your vision may remain stable or improve after the procedure. You may need more than one injection.

Review Date: 9/30/2018
Reviewed By: Audrey Tai, DO, MS, Assistant Clinical Professor (Voluntary), University of California - Irvine, Irvine, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. Editorial update on 01-13-2020.

This information should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. © 1997- 2007 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.