Yes, kale is good for your eyes, so you can eat them much. As we know that Kale, also known as borecole, is one of the healthiest vegetables on the planet. It is also a good source of minerals copper, potassium, iron, manganese, and phosphorus. Kale's health benefits are primarily linked to the high concentration and excellent source of antioxidant vitamins A, C, and K and so on. Also, it is also rich in the eye-health promoting lutein and zeaxanthin compounds. Anyway, it does a good job to your body and your eyes. Just eat them more.