This may not be widely known, but diabetes can also affect eye health when the blood sugar levels are very high in the body. The condition typically has many signs and symptoms that point toward deteriorating eye health; for example, high sugar levels can change the fluid levels in the eyes, cause swelling, or even damage tiny blood vessels. So, let’s look at some of the signs of poor eye health due to high sugar. Blurry vision If you are suddenly experiencing blurry vision, this may be likely due to the high sugar level in the blood. Blurry vision is usually a temporary problem and can be resolved by getting the glucose back to normal. The normal blood sugar should be between 70-130 mg/dL before meals and less than 180 mg/dL post meals. Once these numbers are under control, you can notice your blurry vision improving. It is said that it usually takes around 3 months of constant care and observation to fix the problem, so be consistent in your efforts, and you will see the results. Of course, always speak to your doctor to rule out any other causes for the blurry vision and ensure you are taking the right treatment.