Well, no, tanning bed cannot lead to color blindness. First, you should know that tanning bed can be kind of dangerous. And according to some experts, there are uv rays omitted by tanning bed, and that will affect eyes. In some cases, it can lead to eye cancer, because of excessive UV ray exposure. By the way, inflammation of the cornea, cataracts can be possible to. On the other hand, it cannot lead to color blindness. As we know that the causes of color blindness can be various, and injury of the eye, aging or as a side effect of using certain medications or drugs can be the most common ones. And of course, it can be hereditary too.