What Your Eyes Say About Your Health – WebMD

Sudden Blurry Vision 


An abrupt and dramatic loss of vision may be a sign of a problem with the blood flow to your eye or your brain. Immediate medical attention can prevent serious damage and may even save your life. Even if your vision gets better quickly, it might still be a warning of a stroke or the beginning of a migraine headache. 

Bulging Eyes 

Graves’ disease causes your thyroid gland to release too many hormones, which can lead to this problem. It also may cause diarrhea, weight loss, and hand tremors. Medication or surgery can help control the amount of hormones your thyroid makes, but they won’t cure the underlying disease — and may not help your eyes.

Blurred Vision 

This can be a sign of diabetes, which causes too much sugar in your blood. If it isn’t well managed, you may get diabetic retinopathy (when tiny blood vessels in your eyes leak blood and other fluids). You may have blurred vision and find it hard to see at night. Doctors can use a laser to seal the leaks and get rid of unwanted new blood vessels. This may affect your side vision, but it can save your central vision.

Ring Around Your Cornea 

This condition, called corneal arcus, causes a gray-white line of fat deposits to grow on the outside edge of your cornea (a clear, curved surface at the front of your eye that helps it focus). Sometimes, the deposits make a complete ring. If you’re older, it’s probably not anything to worry about. But if you’re under 40, it could be a sign of dangerously high cholesterol.

Drooping Eyelids 

This can be a symptom of myasthenia gravis, which makes your immune system attack and weaken your muscles. It affects your eye, face, and throat muscles more than others and can make it difficult to chew, swallow, or even speak. Your doctor may filter your blood to help ease your symptoms, but that doesn’t work for long. There’s also medication for it. But in some cases, surgery is needed to remove the thymus gland.

Yellow Whites of Your Eyes 

When your skin and eyes look yellow, that’s called jaundice. It often means you have liver problems and is caused by high levels of bilirubin, something your liver makes more of when it’s inflamed or damaged. Bad diet, cancer, infection, and chronic alcohol abuse can all damage your liver. Treatment ranges from lifestyle changes to medication to liver transplants.

Eye Twitches 

These are extremely common and almost always harmless — they usually go away on their own. They can be associated with alcohol, fatigue, caffeine, or smoking. In extremely rare cases, they can be a sign of a problem with your nervous system, like multiple sclerosis. But if the twitches are linked to MS or another problem with your nervous system, you would have other symptoms, too, like difficulty walking, talking, and going to the bathroom.

Night Blindness 

If it’s hard for you to see in low light, you might need glasses or you could have cataracts — a natural part of aging. But night blindness is not common among younger people in the U.S. In unusual circumstances, you may not be getting enough vitamin A. This is fairly common in poorer countries. It’s treated with supplements or a diet with foods high in vitamin A, like sweet potatoes, beef liver, spinach, carrots, and pumpkins.



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