Furcamper going blind. Your $0.02 to help next trip?

We had 2 dogs, 1 gradually lost her sight until a seizure gave her total blindness. The one who could see watched out for her and she walked on a leash, used her nose and did fine. That last seizure caused her death about a week later as her organs gradually shut down over the next week. She was 16, so age was against her, but she did just fine in the RV. The only thing we had to do was carry her in and out as she couldn't see the steps to judge distance for going up and down herself.