Even though your questions are still general, I do like that you chose a focus on navigation at least.


I will say that you lack a (totally blind) option for sight problems, that you don't have multi line input boxes for text which will make your answers harder to read, and that the rating combo boxes refresh every time the page loads (not your fault) so maybe radio buttons or check boxes would have been better.


It's always good practice to test with a screen reader on your own first, for instance NVDA or Narrator, or have an experienced AT user do it for you.


Not a bad initial survey over all, but you didn't provide an additional comments section so I'll add them here.



Things to keep in mind are:

1: Do blind people even want/need this? If so, how many and what subgroup. Change tact or target it accordingly.


2: Does this concept already exist? If so, think about how to make it more durable, lighter, cheaper, more affective, easier to repair, longer lasting on a battery, more user customizable, easier to troubleshoot while totally blind ETC.
Trust me, we want better products just as much if not more than new ones.


3: Will this do just as much/more potential harm than good? What do A. Experienced blind people in your target market and B. professionals in the field of blindness rehabilitation think of it. What pitfalls do they see.
Bad examples include AI for crossing streets, smart canes (in their current form), sensor suits, and products which provide loud external feedback in social settings.


Good luck! And remember, if you don't get enough responses, try again with less general questions and maybe a reward for participating, but first look around for existing things you can make better.