Hello,
My suggestion..Have your eyes promptly examined by an Ophthalmologist, ( no excuses) ask your questions
and report back to us. We'd like to know.
The last thing you want to do is ask a bunch of knuckleheads like us for medical advice. We can't even agree
on throttle or no throttle.... ( No throttle)
What we can agree on is some of the gear to make bike riding more comfortable as listed below.
As for bike riding you wrote...."There are stretches on the bike route that are so rough, literally, your teeth
could chatter and vision turns into a blur. " I'm assuming the bike route is paved ? I rode an a paved rail trail
today in CT that was just as you described....It was awful.
There are things to soften the ride. Here's a few links. Yes, A these products are pricy, but
you get what you pay for, they work.
I have the seat post on both my e-bikes and they are fantastic ! !
https://cirruscycles.com/products/kinekt-active-suspension-seatpost
The same company makes the suspension stem below. I've read great things about it,
but don't own one. I'm going to order one.
Introducing the Revolutionary Active Suspension Stem that is designed to reduce arm, wrist, and shoulder discomfort for all bikers. Adjustable, Compact, and built to last. The Ultimate Upgrade™
cirruscycles.com
Handle Bar Grips can make a huge difference...
Both of the products below are available in the US even those
these products made in Germany.
SQlab bicycle grips ✓Relieving ✓Comfortable ✓Ergonomic - Grip 702 by SQlab purchase at SQlab. ✓Delivery 0€ ✓Fast Delivery ✓Award Winner
www.sq-lab.com
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www.ergonbike.com
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Gel Gloves...and absolute have..
https://www.restoration.bike/cycling-gloves/best-cycling-gloves-for-hand-numbness/
You didn't mention the type of bike you ride, front suspension ? mountain, touring, etc as well as the tires size.
Good luck,
John