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 as well as double vision and loss of vision. 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.
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 help seal the leaks and get rid of unwanted new blood vessels. This may affect your side vision, but it can save your central vision.
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.
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.
This isn't the only thing that can causde drooopy eyelids. So be sure to work with your doctor to identify the problem.
