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Hypertensive retinopathy
Hypertensive retinopathy


Retina
Retina


Definition:

Hypertensive retinopathy is damage to the back part of the eye (retina) caused by high blood pressure.



Causes, incidence, and risk factors:

High blood pressure can cause damage to blood vessels in the eyes. The higher the blood pressure and the longer it has been high, the more severe the damage is likely to be.

Your health care provider can see narrowing of blood vessels, and excess fluid oozing from blood vessels, with an instrument called an ophthalmoscope. The degree of retina damage (retinopathy) is graded on a scale of 1 to 4.

At grade 1, no symptoms may be present. Grade 4 hypertensive retinopathy includes swelling of the optic nerve and of the visual center of the retina (macula). Such swelling can cause decreased vision.

Other retinopathies that are known complications of high blood pressure are called:

  • diabetic retinopathy
  • ischemic optic neuropathy
  • retinal artery occlusion
  • retinal emboli
  • retinal microaneurysm
  • retinal vein occlusion


Symptoms:

Signs and tests:

Treatment:

Control of high blood pressure (hypertension ) is the only treatment for hypertensive retinopathy.



Support Groups:



Expectations (prognosis):

Patients with grade 4 (severe hypertensive retinopathy) frequently also have heart and kidney complications of high blood pressure. The retina will generally recover well if the blood pressure is controlled, but some patients with grade 4 hypertensive retinopathy will have permanent damage to the optic nerve or macula.



Complications:
  • Complications associated with high blood pressure
  • Irreversible damage to the optic nerve or macula, resulting in vision problems


Calling your health care provider:

Go to the emergency room or call the local emergency number (such as 911) if you have high blood pressure and vision changes or headaches occur.



Prevention:

Control of high blood pressure prevents changes in the blood vessels of the eye.



References: Klig JE. Ophthalmologic complications of systemic disease. Emerg Med Clin North Am. 2008 Feb;26(1):217-31, viii


Review Date: 9/7/2008
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

The information provided herein 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. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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789 Central Avenue, Dover, NH 03820
Phone: (603) 742-5252
Toll free: 1 (877) 201-7100