

I had a similar situation as you. I got a prescription later in life in my late 20s after never wearing glasses before. One eye had a stronger prescription than the other.
It took me about 5 days of daily wear to fully acclimate to the prescription. Each day got better than the last, but I definitely felt like you are describing on day 1.
It isn’t a fun process but it will also feel better and your eyes will feel much less strained with the prescription, so it is ultimately worth it.
We had a very similar experience. Our cat’s eyes were green, but one of her eyes slowly started to darken and change pigment over the years. We would keep bringing it up to our vet who told us it wasn’t cause for concern.
Eventually that eye was deep dark brown, so we went to a different vet for a second opinion and they immediately said “that eye has to come out” and referred us to a veterinary cancer specialist.
We had her eye removed and while we were nervous and felt guilty about it, it was a huge success. Our cat perked WAY up after recovering from the surgery and you’d swear she was a kitten again despite being 11 years old.
She adapted quickly and the one eye doesn’t seem to impact her hardly at all.