I wear single vision glasses for cycling and driving. The one place being 7 diopters myopic comes in handy is that I can adjust for close focus simply by sliding them down my nose. My progressives have "office" partitioning, with allocates only the top 20% or so for distance.

As for large displays, in the early 1970s the shop manager at one of the Bikecology stores got a bicycle computer predecessor, which comprised the usual magnet-and-pickup for cadence and another for speed, along with two large analog gauges reminiscent of stereo tape recorder VU meters for the display. I suspect the entire system was analog, with a simple frequency-to-voltage conversion function between the Hall effect sensors and the displays. I have never seen another like it, and it was not long before the first digital displays began to appear.

I don't know about the rest of you, but I detest digital speedometers and tachometers in cars, so why should bicycles differ?