Though I don't have a problem w/ colors, I do have an eye problem resultant of a detached retina that didn't re-attach properly, 7 surgeries later, still no resolution. Due to the problem I neglected my rather extensive garden and it sank into a large weed patch that I'll have to repair this summer. The eye itself really wasn't the problem, my psychological attitude about the eye was the root cause. I've finally pulled myself out of that hole resolving to rectify my error, and feel better about the situation.
I just wanted you to know there are other gardeners out there with eye problems and gardening is a good solution to offset problems we encounter. Designing a garden around your problem sounds like an ambitious project that completed will do a doer proud. Gardeners are innovative and solution orientated.
