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I recently was required to renew my glasses prescription because the other one was 2 years old (so considered expired). When I got my new prescription, my optom
by calebm 2y ago
I recently was required to renew my glasses prescription because the other one was 2 years old (so considered expired). When I got my new prescription, my optometrist said "your vision improved". I have been spending more time outside. I have found that time on the water seems to make my vision improve. I also suspect that walking through forests and experiencing the parallax effect might function as something like a depth perception calibration. It's also worth noting that I do wear glasses, but not all the time - intentionally so I can exercise my eyes.
- LorenPechtel 2y agoWhile I can see this altering your prescription why should it improve your vision?
- Thorrez 2y agoIsn't prescription going down the same thing as vision improving?
- LorenPechtel 2y agoNo, there are two separate things: 1) Your prescription. 2) What your vision is like with the best correction.
- Thorrez 2y agoThen I'm guessing calebm misremembered what the optometrist said. Probably the optometrist said "your prescription improved" or "your prescription decreased".
- LorenPechtel 2y ago"Vision improved" is a possible result of treatment. My wife has had cataract surgery--her vision in that eye certainly improved! It also is possible to have your vision improve without treatment. I have some astigmatism, it's simply impossible to fully correct. My prescription changes a lot, it's possible for the astigmatism to be a bit less of an issue on a particular exam to the point that the best line I can read sometimes changes.
- 3abiton 2y agoAny research on this?
- glandium 2y agoOr, if your myopia wasn't too bad and you're in your 40s, that could just be related to presbiopia. That's what seems to have happened to me, and what the ophtalmologist I was seeing when I was a teenager told me might happen.
- FreeRadical 2y agoThis may be a silly question but were you spending the time outside with or without your glasses on?
- LoudFrog 2y agoLet us know when you have 2020 vision again.
- hosh 2y agoIt's the dopamine interaction of the retina receiving outdoor lighting which changes things. I don't think this works on astigmatism though.
- LoganDark 2y agoWhy would your eyes care about dopamine? Is it because the optic nerve is part of the brain?
- robwwilliams 2y agoThe entire retina is part of the CNS, aka “the brain”. The optic nerve is therefore part of the brain. There are dopaminergic amacrine cells within the retina and dopamine receptor much more widely. Here is a reference with some of original citations: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2865197/#R36 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2865197/#R36
- pchangr 2y agoThis is cool, thanks for sharing!
- h0l0cube 2y agoA cursory googling led here: > Dopamine is a key neurotransmitter in the signaling cascade controlling ocular refractive development, but the exact role and site of action of dopamine D1 receptors (D1Rs) involved in myopia remains unclear. [.. snip ..] > Therefore, activation of D1Rs, specifically retinal D1Rs, inhibits myopia development in mice. These results also suggest that multiple dopamine D1R mechanisms play roles in emmetropization and myopia development. https://www.jneurosci.org/content/43/48/8231 https://www.jneurosci.org/content/43/48/8231