If flashes of light
or floaters occur suddenly or in great numbers, or if you are not sure what to
do, do not wait for vision loss to occur before you call
your doctor. If you cannot reach your doctor, go to the emergency room. Although these symptoms do not cause pain and may seem
harmless, getting an eye exam and quick treatment can send you home relieved
or, if there is a problem, can save your vision.
People usually complain of blurred vision, or children may not pass their vision exam at school before they’re diagnosed with astigmatism.
The doctor may use one or more of these four tests to diagnose astigmatism and measure its severity:
Vision test. Using a standardized chart, patients read the letters they can see from 20 feet away. If your vision is 20/20, you can see at 20 feet what a normal eye can see from 20 feet. If your vision is 20/80, you can only see at 20 feet what a normal eye...
Taking a wait-and-see approach, called watchful
waiting, is not an option if you have new or sudden flashes or floaters,
darkness over part of your visual field, or a new loss of vision that does not
go away. Sudden, rapid vision loss is a medical emergency.
Who to see
If you have symptoms that suggest that you might have
or are at immediate risk for a retinal detachment, call your doctor immediately. If you do not have an eye doctor (ophthalmologist), call your regular doctor. Based on
your symptoms, risk factors, and medical history, your doctor may refer you to
an eye doctor for an immediate exam and possible treatment.
Treatment for retinal tears and detachments is often done by an eye doctor who
specializes in retinal detachments.
This information is produced and provided by the National
Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National
Institute via the Internet web site at http://
.gov or call 1-800-4-CANCER.
WebMD Medical Reference from Healthwise
July 15, 2013
This information is not intended to replace the advice of a doctor.
Healthwise disclaims any liability for the decisions you make based on this