This content includes information from experts in their field and is fact-checked to ensure accuracy.
Our team of editors strives to be objective, unbiased, and honest.
We are committed to bringing you researched, expert-driven content to help you make more informed decisions as it pertains to all aspects of your daily life. We constantly strive to provide you with the best information possible.
This change in your eyesight could signal a serious condition.
People may say they’re windows to the soul, but our eyes also provide plenty of insight into our physical well-being. Whether through pain, pressure, or changes in vision, our eyes can serve as a red flag about various health problems. Even COVID enters into the eye equation, with underreported symptoms such as watering, redness, and discharge occurring in some patients. There are also many eye myths out there—like the old warning that if you cross your eyes, they’ll freeze that way (FYI, that one is false).
There’s one specific eye symptom, however, that you shouldn’t ignore. Read on to find out which potentially alarming change in your vision could be a sign of cancer.
READ THIS NEXT: If You Notice This on Your Face, Get Checked for Cancer
“A sudden change in vision, which does not clear with a blink or a moisture drop, should prompt one to seek medical attention,” says Howard R. Krauss, MD, surgical neuro-ophthalmologist and Clinical Professor of Ophthalmology and Neurosurgery at Saint John’s Cancer Institute at Providence Saint John’s Health Center in Santa Monica, CA.
There may be other sudden changes, such as new pain or discomfort. But specifically, blurry vision can indicate an eye melanoma, according to the Mayo Clinic, and even small melanomas “can cause some vision loss if they occur in critical parts of the eye.”
Most of us have experienced blurry vision at one time or another, and there are various potential reasons for it. “There are many causes of sudden blurred vision—some worrisome, but some not,” says Krauss.
In some cases, dry eyes are the culprit—especially since so many of us spend a good portion of our day staring at screens. According to the American Optometric Association (AMA), dryness in the eyes can feel “irritated, gritty, scratchy, or [burning].” Dry eyes may water, sting, and be prone to producing mucus, as well as interfering with vision.
“Does the blur vary with a blink? If it does, in many cases it may be due to dryness of the eye and/or excess mucus in the eye,” Krauss explains. Using an over-the-counter moisturizing eye drop may reverse the blur if this is the case.
READ THIS NEXT: If You Notice This With Your Eyes, Get Your Thyroid Checked, Doctors Say.
Since some kinds of blurred vision can indicate cancer or another serious condition, Krauss suggests checking your symptoms. “Ask yourself, ‘What’s going on?'” he says, adding that you should look for accompanying symptoms such as lightheadedness, weakness, headache, and/or an altered sensation in another area of the body.
“If you are safe, well, and not having other symptoms, analyze your vision,” Krauss advises. He suggests covering one eye at a time to assess whether the blurriness is in both eyes, just one eye, or only when both of your eyes are open. “Is there double vision or shadowed vision, and, if so, is it present in one eye, each eye or only when both eyes are open?”
Krauss also recommends observing whether the blur occurs at all distances, involves other changes such as brightness, or involves “floaters, debris, bugs, squiggly lines, or veils.” These symptoms may mean you need to seek medical treatment.
RELATED: For more up-to-date information, sign up for our daily newsletter.
While it isn’t known exactly what causes eye cancer or how to definitively prevent it, you can practice eye-healthy habits that may reduce your risk of disease. The American Cancer Society notes the link between sun exposure and melanomas and suggests decreasing exposure and protecting yourself with clothing, sunscreen, and sunglasses.
Other healthy habits include getting regular eye exams. “An eye exam helps detect eye problems at their earliest stage—when they’re most treatable,” says the Mayo Clinic. Your eye doctor can tell you how frequently to come in for wellness visits. Reducing your time in front of screens and practicing healthy contact lens habits—such as cleaning your contacts and taking them out regularly—are also ways to take care of your eyes.
“Adding powerful vitamins, antioxidants, and minerals to your diet can improve your vision and overall eye health,” advises the AMA.
Krauss advises that if you’re not sure about your blurry vision, you should contact an eye care professional.
READ THIS NEXT: If You See Eye Floaters, It Could Be a Sign of This Chronic Condition.
The first location will open its doors May 19.
You may not be as protected as you'd hoped.
See which hotels were crowned the best of 2022.
Shoppers will want to pay attention.
Here are the limits set by Walmart and others.
See who can't keep calm and carry on.
© 2020 Galvanized Media. All Rights Reserved. Bestlifeonline.com is part of the Meredith Health Group