I posted about getting used to varifocal glasses a couple of weeks ago. Thanks to all who replied. It seems that the majority of people get used to them within a few weeks, or give up completely!
I’ve been trying to wear them all the time but was noticing firstly that my eyes are getting very tired, secondly that my left eye was seeming a bit blurry when tired.
So today I went back to $pec$avers (thanks for the spelling Dr G!), and talked to the assistants/manager. It seems that my problem was partly due to my wonky face/ears and not having straight glasses. It seems that varifocals require that the glasses be exactly lined up, otherwise you get bits of vision in the wrong place. So they straightened out the glasses so they fit correctly.
But, it was/is maybe also because I could do with prisms to straighten out my vision. When the optician did the test, she suggested that I have prisms put into the glasses because the muscles pulling my eyes out don’t work terribly well so the prisms are supposed to help. Now, once upon a time, maybe 20-25 years ago, can’t remember exactly when it was, I was told I needed prisms in my glasses to make lazy muscles at the edges of my eyes pull my sight straight. I never got on well with these prisms so I gave up and had glasses for my short sight made up without prisms. This was the last I heard about prisms until now. (Question, did I have optic neuritis some years before I had any other MS symptoms? My first definite MS relapse was about 18.5 years ago.) When I had my eyes tested 2.5 weeks ago, the optician said I needed prisms but was OK about writing a prescription without prisms because I said I didn’t want them. The manager of the branch said that the need for prisms did not usually get worse over time in the same way as sight generally deteriorates as we get older. One suggestion that was made was that I get one pair of glasses (ie the free pair) made up with prisms and leave the others as they are. I’m not too keen on this option as it might make my sight weird regardless of what glasses I have on and that’ll affect balance etc.
But I’m wondering, how I could need prisms 20 years ago and again now, but not in between? And does it have anything to do with MS? Did I 20ish years ago, and again now, have optic neuritis that made my eyes behave strangely?
And can I accept that my current need for prisms will remain? I don’t exactly think I have proper relapses any more, but I could be wrong. I could be having a relapse that manifests as ON and just regular iffy symptoms otherwise!
Has anyone else had any experience of prisms in glasses? Anyone had a need for prisms for a short while then not needed them any more? I don’t think this is strictly speaking a varifocal issue, but it might be related. I’ve not noticed any problems over the last few years, wearing glasses to correct my short sight when I really needed it but managing without them a lot of the time.
What do you think? Any thoughts about prisms, varifocals, ON etc gratefully received.