Interesting question! Both my parents had MD and we never thought about adjusting the lighting for them. Since they had it, I’m going to be on the lookout for it as well, and will follow your thread and hope for helpful information!

My mom has MD. She hasn't required much in the way of adaptations except for motion activated night lights so that she can safely get to her bathroom at night. She does use a lighted handheld magnifier for reading anything, so having several of those around the house have been helpful. Most of her lamps are on timers so that her home is lit without having to turn them all on manually. She is 89 and still very independent.

ETA: Contrast will become important. It’s much easier for my mom to ”see” black print on white surfaces, or some kind of contrasting color. For example, I drew a big ”W”on a neon sticker above the dishwasher control for wash, since her dishwasher is black with black buttons. check your local sight center for adaptive ideas and resources.

Many of the decisions seem to depend on whether, and how soon, a person becomes legally blind.

In my case sewing has become next to impossible in the last few years. I have a stash of fabric that I looked forward to using for pillow covers and other things. Now I need to consider if it's worthwhile to hire someone to sew or donate the fabric and order whatever we need.

We've used motion activated night lights and light timers for years, but need to look at changing bulbs or fixtures to more appropriate ones. Lighted hand held magnifiers are a good idea; I should buy a dozen to have them handy all over.

I've been aware for a while that other conditions have meant that I no longer perceive colors quite the same way that others do. Combine that with the effect of warmer temperature lighting and I'm not sure what to do about color choices. The lighting in our home will be different from both typical store lighting and daylight.

My husband is no help. He references Mr. Blandings Builds His Dream House, when Mrs. Blandings described in careful detail each tone and shade of paint color she wanted and the painter said, - got it, red, green, blue, yellow, white. Husband is like the painter.

https://www.youtube.com/watch?v=s33ScN4D-HU

The use of high contrasting elements becomes important. Steps and stairs should have a significant contrast with the main floor, which is counter to current design trends. Wall oulets should stand out against the walls.

Use light main colors for reflectivity of light, but with important elements being dark. Cabinet handles. Stove knobs. Faucets. Wherever you can, use contrast to highlight function.

Use Alexa or other smart sensors to help. ”Turn on DR lights”. “Change the TV to HBO” Create verbal commands that don’t involve visual use. Visual cues should involve large scale, and contrast.

I just read a few articles on the subject of LED bulbs and ultraviolet light. All articles reported the same information: the amount of UV light emitted by standard LED bulbs is essentially zero.

@User, I hadn't thought about cabinet hardware. We're doing natural walnut kitchen cabinets and black pulls, along with black door hardware. I've been told that the walnut will lighten eventually, so maybe by the time this is a significant issue there will be sufficient contrast to the black pulls. If not, that's easy enough to change.

We hope to delay using voice activated electronics. I have no love for the IOT but much of it is inevitable. We are doing motion sensor/occupancy sensor switches in some rooms for the present. I'll look for a universal remote for the TV that has extra large buttons to use for now.

I've read that cool colors, such as blues, can be dulled in warm lighting. Fortunately, the only rooms that have blue elements, such as tile, already on order are the guest bedroom and guest bathroom. I still wonder how my paint selections will appear to folks with normal vision and may end up hiring someone to help making those choices.

Here's a link to the bump dots. They're extremely useful for marking buttons on things like the stove, dishwasher, and washer and dryer. https://www.amazon.com/Mixed-Bump-Dots-Sizes-Colors/dp/B00II5TM6W

Be careful with patterns - eventually it can become hard to distinguish between a pattern and an object (patterned plates make it hard to eat, for example because it becomes difficult to distinguish between the food and the pattern, or you set something on the patterned bedspread and can’t locate it). High contrast is helpful.