Well, of course, soap will not cause the blindness. So you should not worry about it. Just wash your eyes with clean water, so that it can relieve the pain in your eyes. As we know that soap contains a lot of chemical materials, so it can be the irritants to the eyes. If you do not wash your eyes as soon as possible, it can not hurt your eyes, but also can infect your eyes. And then lead to eye infection. At that moment, it can be dangerous, for you may suffer red eyes, and dry eyes, even watery eyes. After wash your eyes, you can use some eye drops to protect your eyes too.