Yes, it is good for your eyes. You should know that Spirulina is considered a super food and it is a potent source of nutrients. According to the research, it contains as much as 70% protein. Also, it is a good source of chlorophyll, B-complex vitamins, vitamin E, and iron. So it can improve your vision and be good for your eyes' health. Besides, you can eat some other foods which can also do a good job to your eyes. For example, you can eat watermelon which is rich in vitamin-C and Lutein and Zeaxanthin. And they will ensure protection of your eyes from macular degeneration. Also they can provide you enough water, so that your eyes will be moistened.