Well, generally speaking, dark chocolate can be good for your eyes. As we know that Dark chocolate is associated with many health benefits. For example, it can decrease the blood pressure. And also it can boost your mood, when you are sad. But on the other hand, it can also do a good job to your eyes. First you should know that this type of chocolate contains a range of vitamins, minerals and other nutrients that improve your eyesight. For example, the vitamin A in dark chocolate protects against macular degeneration. As we know that it is a condition that affects vision as you get older. Besides, it can be helpful to your night vision. In addition, they are rich in Lutein and zeaxanthin, which can protect eyesight by reducing your risk of macular degeneration and cataracts. Of course, you can also eat some watermelon which has the same effect on your eyes.