Stomach ulcers, also known as gastric or peptic ulcers, are tears in the lining of the stomach that cause acid and digestive fluids to damage tissues that are located beneath the lining. It will make you have nausea, weight loss, vomiting, appetite loss, tarry black stools, or vomiting blood and other body problems. In these conditions, you will feel blurred vision from stomach ulcers. You should go to see a doctor to cure it to have eye health. In a word, blurred vision is a related link to stomach ulcers. So, you should change your life styles, such as getting rid of smoking, stress, poor diet, obesity and so on. Meanwhile, there are many different conditions for getting blurred vision. For example, lack of sleep can cause dry eye which is manifested as fluctuation of vision in which sometimes you can see clear while other times it is blurred. Certainly, there are other causes for blurred vision. So, you had better go to see a doctor to exam carefully, then cure stomach ulcers and blurred vision. Good luck!