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I ordered an optometry kit from Amazon as my prescription changes by the hour most days. Was very interesting to play around and helped me isolate the 2 prescr

I ordered an optometry kit from Amazon as my prescription changes by the hour most days. Was very interesting to play around and helped me isolate the 2 prescriptions that my eyes drift back and forth from. Something that eye doctors had given up on trying to help me.

jtwaleson 5y ago
Cool, that's a great hacker approach! Fine-tuning like this isn't economical for eye doctors, and 99.5% of the population isn't interested but it will give you the best results. Just checking because it looks like you're from '79 and talk about drifting vision: you know about presbyopia and accommodation? You might need multi-focals.
- treeman79 5y ago
  It’s cranial pressure and sixth nerve palsy. As my cranial pressure goes up my horizontal eye nerves weaken causes vision to go double. Prism glasses fixes this. But it’s a completely different power. +3 goes to -1 or anything in between. As pressure goes down it reverts. Medication or activity can drop or raise it in an hour or less.
  - jtwaleson 5y ago
    Wow, that's more serious than what I was expecting and beyond my limited ophthalmology knowledge. Glad that you managed to find a solution.
MandieD 5y ago
OMG. You may end up having changed my life - it had never occurred to me that a) this was a thing I could just up and buy, and b) it really isn’t that expensive. No more worrying that I’m about to stick myself with the wrong prescription because the optician (yes, that’s who measures you for glasses in Germany) or I lost patience trying to find the boundary between spherical and cylindrical correction, or doing this at the wrong time of day, all for less than a pair of glasses costs. Any brand recommendations?
- treeman79 5y ago
  I got a 200 dollar set that I’m happy with. It comes with “glasses” to attach the lenses to. But suggest ordering one that is more adjustable. The one it came with doesn’t adjust for distance between eyes.
buildsjets 5y ago
I need a different prescription depending on how wide my pupils are. I have separate glasses for night driving. Discovered this after a consultation with a real ophthalmologist, not an optometrist. They can dilate your pupils with eyedrops to take what’s called a wet refraction.

jtwaleson 5y ago

Cool, that's a great hacker approach! Fine-tuning like this isn't economical for eye doctors, and 99.5% of the population isn't interested but it will give you the best results. Just checking because it looks like you're from '79 and talk about drifting vision: you know about presbyopia and accommodation? You might need multi-focals.

treeman79 5y ago
It’s cranial pressure and sixth nerve palsy. As my cranial pressure goes up my horizontal eye nerves weaken causes vision to go double. Prism glasses fixes this. But it’s a completely different power. +3 goes to -1 or anything in between. As pressure goes down it reverts. Medication or activity can drop or raise it in an hour or less.
- jtwaleson 5y ago
  Wow, that's more serious than what I was expecting and beyond my limited ophthalmology knowledge. Glad that you managed to find a solution.

MandieD 5y ago

OMG. You may end up having changed my life - it had never occurred to me that a) this was a thing I could just up and buy, and b) it really isn’t that expensive. No more worrying that I’m about to stick myself with the wrong prescription because the optician (yes, that’s who measures you for glasses in Germany) or I lost patience trying to find the boundary between spherical and cylindrical correction, or doing this at the wrong time of day, all for less than a pair of glasses costs. Any brand recommendations?

treeman79 5y ago
I got a 200 dollar set that I’m happy with. It comes with “glasses” to attach the lenses to. But suggest ordering one that is more adjustable. The one it came with doesn’t adjust for distance between eyes.

buildsjets 5y ago

I need a different prescription depending on how wide my pupils are. I have separate glasses for night driving. Discovered this after a consultation with a real ophthalmologist, not an optometrist. They can dilate your pupils with eyedrops to take what’s called a wet refraction.