Your glasses have not changed their prescription in twenty years. You have seen just fine with these same prescription lenses all along. Then, all of a sudden, you cannot look at things up close; everything blurs and makes you feel like you are going cross-eyed trying to look at what is right in front of you.
What is going on? Your optometrist cannot find anything really wrong with your eyes, either -- at least not from the usual set of vision tests.
If you have type 1 or type 2 diabetes, you are at risk for developing a serious eye disease. Diabetic retinopathy is a disease of the blood vessels in the eye's retina. High blood glucose levels inflict damage to these small vessels, weakening their walls and enabling them to leak blood. This leads to retinal swelling, macular edema and abnormal growth of new blood vessels, resulting in permanent vision loss. According to the American Diabetes Association, diabetic retinopathy is the leading cause of blindness in adults worldwide.
When your eye doctor tells you that you have cataracts, you might not need surgery right away. It depends on how quickly your cataracts progress and how much they interfere with your life. The only way to improve your vision when you have cataracts is with surgery. Glasses won't help because the lenses of your eyes become cloudy and glasses won't make the cloudiness go away. Fortunately, the cataract procedure is a fairly quick and safe surgery to undergo and it can restore your sight.