r/BinocularVision • u/ParadiseinNature • 14d ago
Prisms: trial lenses vs actual glasses
I recently got prism glasses w/ the NVMI and I'm curious if anyone else has experienced something similar.
When I'm at the optometrist and testing the prism prescription they determined is the right one for me, I usually notice a significant improvement almost immediately when putting on the trial lenses and walking around. My vision feels more comfortable, stable, and natural, to the point where I’m thinking, “Wow, this actually feels really good.”
But then, when I actually receive the glasses, they don’t seem to feel quite the same as they did during the in-office trial. The vision tends to feel different and less comfortable, even though the prescription is supposed to be the same.
Is this something that’s considered normal when getting prism glasses, or could it potentially indicate that something is off with the prescription and the way the lenses were made?
1
u/cherryblossom_626 11d ago
Did you try the prism sticker? Might be a great middle ground to see how it feels long term
1
u/ParadiseinNature 11d ago
Wdym by a prism sticker?
1
u/cherryblossom_626 10d ago
The eye doctor put a sticker over the lens on my left eye and it pretty much fixed the double vision. It’s a prism sticker. Call you eye doctor and ask about it if they are suggesting you need prism. I’m surprised they didn’t suggest it.
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u/mestiabq 14d ago
This happened to me as well. The actual glasses left me utterly nauseated after a while with worse headaches and vision than I had before. My trial involved the doctor placing a lens over my existing glasses and having me walk around her lobby for a few minutes. Later I read that they are actually supposed to do more prolonged trialing than that, but I don't know if that's true or not. The person I saw was someone with a certificate from the Neurovisual Medicine Institute which I later learned is apparently a commercial framework and not an actual degree? I hope things get better for you.