Yes, of course, watermelon can be good for your eyes. According to some experts, the health benefits of water melon include kidney disorders, high blood pressure, heart care, heat stroke, macular degeneration. And it is especially good for eyes' health. You should know that they are rich in vitamin-C and Lutein and Zeaxanthin. So they will ensure protection of your eyes from macular degeneration. Also, these anti oxidants will protect your eyes from other age related ailments such as drying up of eyes and optical nerves, glaucoma. Anyway, they are beneficial for your eyes. Besides, watermelon is good for the heart care, so patients who want to have heart care, can eat more.