I feel for each of you who are suffering from sight loss!
"Touch Wood", my eyes are fine with the help of spectacles,
but I do have several friends who are losing their sight and I
feel so useless knowing that I cannot help them, I have read
up on the subject many, many times and I am still at a loss.
Have you tried "Pinhole Glasses", they are quite good as they
exercise the eyes and they do help. Ebay sell those.
UCL Hospital London, is also a University and last year they
published findings that if you stare at red light for 3 minutes
per day, it will help your eyes and in some cases reverse the
problems you are experiencing.
I also take "Sea Buckthorn Oil Capsules", they are reputed to
be good for all kinds of ailments and eyesight is one.
Below are some links that may interest you, the first is the UCL
report, the second is where people in the UK can get the red light,
torch and the third is where Americans can get the red "Flashlight",
both places have them at the proper intensity of light.
https://www.ucl.ac.uk/news/2020/jun/declining-eyesight-improved-looking-deep-red-light
https://www.ebay.co.uk/itm/670nM-Zo...eteriorating-Eyesight-Red-Torch-/324311651011
https://www.amazon.com/AuKvi-Flashlight-Waterproof-flashlight-Observation/dp/B07PKPBPF6
I hope that this information helps at least one of you.
Mike.