I would love something like this. Over the past 5 years I have experienced my eyesight degrade since reaching 40 years old. I always use to quietly brag to myself about having such good vision. And then suddenly it gets a little bit of challenge to read, so you get a weak strain of reading glasses and from their you continue up in strengh ratings until you realise the person over the road from you has a blurred face and you have gone from needing reading glasses to needing glasses all of the time.
Since we're commiserating: the vergence of my eyes is failing and I'm not even 40. My actual vision is perfect; better than ever. But apparently my eyes don't converge so well anymore, giving me horrific headaches if I look at any kind of screen for more than a few minutes :( Really sucks. Doc gave me prism lens so I can use a computer again, but they're exhausting to use. Hoping I can find a specialist after the pandemic is over and figure out a better option; really don't want this to get worse.
Kind of sick joke, considering I spent almost a decade of my career doing computational imaging and computer vision work.
I had something like that and doing a few minutes a day of magic eye / 3d stereograms sessions helped me a lot. That consisted of learninng how to see them then learning to hold the image up in 3D (feels like starring behind the image) then rotating the eyes around while holding the stereogram in focus (looking at all parts of the image not just center). This helped strenghten my eye muscles and tension/headaches went away.
I printed out a Presbyopia chart (http://www.robert-silverman.net/presbeninst.htm) that was linked on HN awhile back and started using a Brock string. Figured I'd do those until the pandemic is over and I can get some professional vision therapy.
Guess I'll pick up a magic eye poster too. At least it'll be more fun than staring at a string for five minutes.
There are tons of magic eye available as images online. Not all magic eye images are equal and beware they all have different depths and some are more visible and pop up faster than others. Some are particularly pleasant to stare at.
Btw, there is even a magic eye tetris out there. Playable only when one is proficient at seeing magic eye images.
Very interesting presentation, thank you for the link. I'll have to look and see if they've made progress since then; something I can try at home perhaps.
Wonder if a VR headset with a custom interpupillary distance (IPD) would work for you? eg set it to a distance that's not physically correct, but er... more correct for how your eyes operate.
If it's works, you'd be able to read text again. You'd just need to do it from inside VR. ;)
How did you know it was that? I've had a quite sudden change in vision (I used to be able to read without glasses or function daily without glasses, and in a matter of weeks or months I suddenly needed glasses all day, I'm 37) and it seems my astigmatism progressed, but not that much since before.
I also had quite bad posture during the confinement and wonder if I could have pinched a nerve?
I'll definitely have my doctor take a look. Thank you. It's so hard to find information about possible causes for convergence insufficiency. All my Google diggings have come up with the usual information about treating it in children :/
Your eye has "extra flexibility" to focus at birth (that is, it can focus beyond infinity and nearer than is useful), but it slowly hardens and becomes less flexible. Around age 40-50 is when you really start to notice the loss in range, assuming you had something close to a normal balance between distance and near vision to begin with.
I am 42 and I started experimenting with NMN, NR and resveratrol in January.
My eyesight measurably improved, by about 1,25 dp, within weeks (I am shortsighted since childhood.) I no longer notice any eye strain even after looking into screens for hours. My very, very mild presbyopia disappeared. Also, I believe that I can see colors much more brightly, but this is something that cannot be measured easily, if at all.
I don't believe so. It's my understanding that the protein structures that make the lens so flexible-- mostly alpha-crystallin --- are created during the development of the eye and slowly lost over time.
Later, transparency is lost in the cornea for similar reasons and we get cataracts.
Then with cataract surgery you can choose your preferred focal length for your new stiff artificial lens.
I doubt that that's a key factor. There's a lot of luck on initial refractive error, etc.
I don't need reading glasses. One reason is I have one eye with a slightly near refractive error and one with a slightly far refractive error. They're also both pretty close to nominal, so losing a bit of range on focusing doesn't hurt as much as if I'd been biased one way or another.
I do notice that I prefer slightly larger text than before. I bet if I tried reading glasses that I'd find that they lend some benefit.
I notice that after a long hike in the mountains, I can see a bit better. The effect stays for several hours.
Probably the eyes need some training too, refocusing onto near and far objects frequently. We live in a computer screen world, this is very unnatural for our eyes.
Is there an incentive to perform peer-reviewed, triple-blind, controlled studies on people to see if diet and exercise helps? Then there's no way to know.
Precisely same here most noticeable on screens and in morning. My wife passed me her glasses and my screen became sharper than ever. My fear is using them too much might then mess up my non glasses vision.
Probably not. Age-related near vision loss is due to the lens of your eye losing flexibility with age, and not being able to change shape as much to focus on near things, and not any kind of baseline refractive error.
