Nobody ever asks "if I'm deaf, then what does it sound like?" because EVERYONE already knows what it's like to not hear anything. Same for taste, for going numb, we all experience lapses in those senses
It's sight that seems to be the exception. No one who hasn't personally experienced blindness can actually imagine what blindness is like. Even as I roll my eyes to the left and say "me not being able to see what's on my right is what being blind is like" still doesn't satisfy me because, well, I just plain can't see that. And that's the point. My brain just can't comprehend my entire vision being like that. Eyesight is so incredibly mind boggling to think about losing, that it actually tests the limits of my imagination.
And this is why eyesight is truly the most important sense. We always see something, even if it's just darkness, there's never a time that our eyes aren't working hard to show us what's in front of us