Well, yes, it is possible to have blurred vision after you have drunk coffee. Generally speaking, coffee will cause the body to recycle less water and nutrients resulting to less absorption of water and nutrients. We can say that drinking coffee causes your body to eliminate water and nutrients faster than normal pace. And then it will affect your eyes, leading to blurred vision. By the way, coffee contains caffeine and it can cause headaches and migraines which can result in visual symptoms such as temporary blind spots. If you consume too much caffeine, it can make the muscles in your eye start to spasm. So just be careful about it.