Hi MB22
As we already have very many threads relating to this same topic I’ve moved yours over to avoid yet more duplication. As I’m sure you will appreciate that very fact is a strong indication that you are far from alone dealing with these issues. In fact IMO it’s been in epidemic proportions for a good many years computer screen intolerance. Personally I fear evolution is far from keeping up with technological developments. And like you I’m another victim myself.
Others threads certainly worth a read (much of my own experience included here)Computer and tv screen intolerance
And amongst others
Computers a trigger?
And those are all before one thinks further about the underlying reasons and searching them individually such as FL41 lens. All good keywords worth searching that will help you with knowledge gain but most probably won’t do your current symptoms much good.
When it comes to FL41 lens you should be able to get them made up in most countries. Personally I have two pairs - indoors and outside, been sitting in a cupboard for years. No use to me whatsoever but many many more will tell you the exact opposite. They find them lifesavers, quite literally. We are all so different.
Migraine lenses