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Aging and Eye Problems

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Re: Aging and Eye Problems

#51

Post by ninala »

WarOnPrivacy wrote: post #40

At about 50 I began getting corneal abrasions. My eyes dry out while sleeping and when I open them in the morning, my eyelid would take a certain amount of my cornea with it. Usually just one eye but sometimes both. I trained myself to not open my eyes when I wake up. I work them carefully until I feel safe. Sometimes it still happened a few blinks later. Besides being excruciating, the abrasion mostly blinds me for…

This is likely because your eyes are not closing all the way when you sleep. Close your eyes casually and have someone look. They probably will see the whites of your eyes. Try training yourself to close your eyes completely when you sleep. Tape them shut if necessary. See if that helps.

Re: Aging and Eye Problems

#53

Post by mjuarez »

WarOnPrivacy wrote: post #40

At about 50 I began getting corneal abrasions. My eyes dry out while sleeping and when I open them in the morning, my eyelid would take a certain amount of my cornea with it. Usually just one eye but sometimes both. I trained myself to not open my eyes when I wake up. I work them carefully until I feel safe. Sometimes it still happened a few blinks later. Besides being excruciating, the abrasion mostly blinds me for…

Having had this on my right eye a few months ago, I can confirm, the pain is excruciating, and my body was in panic mode. I rushed to the ophtalmologist, who confirmed I had a large abrasion. She says some people sleep with their eyes half open, and because you don't blink while sleeping, that exposed part of your eye completely dries out, and when you blink in the morning, you can rip away a chunk of the cornea.

After that, I've been doing Systane ointment or gel, right before going to bed, and eye drops in the morning, as soon as I wake up. Every single day. The doctor said it doesn't happen overnight, it's usually a drying out over multiple days, but I'm not taking any chances.

Do yourself a favor and have a doctor check it out.

Re: Aging and Eye Problems

#54

Post by inejge »

CyLith wrote: post #30
EvanAnderson wrote: post #14

I'm nearly 49 now. Presbyopia (the loss of ability to close-focus) came on strongly for me at about 46. It was almost like an overnight change. I've also lost significant acuity in low light, but that seemed to come on more slowly. I got my first bifocals last year. I got the "no line" variety and, so far, I hate them. The focal distances I need for reading, viewing my phone, and other close work are at the absolute…

Optical engineer here. This is what they don't tell you about continuous/transition/progressive bifocals: optically they don't work. The lens design is an overconstrained optimization problem and the solutions they come up with end up compromising a lot on everything, to the point that it is practically useless.

> This is what they don't tell you about continuous/transition/progressive bifocals: optically they don't work.

I'll defer to your judgement re optical properties, but I want to offer a counter-anecdote about practicality.

I've had myopia and have been wearing negative diopter glasses for over half my life. I've never needed vision correction for reading. This is not an unusual combination, and if you want a celebrity example, watch some old Apple keynote videos with the late Steve Jobs, who would repeatedly lift his glasses to read something on the phone in his hand. This "works", but can be inconvenient in some situations.

A while ago, I started thinking about progressive bifocals. Cursory web searches told me that my particular combo was impractical. My optician didn't see a problem, so I decided to trust him and got a pair made. The TLDR is that they work for me much better than the old ones. There was a period of adaptation. Going downstairs and looking at the floor/ground were a bit disorienting for a while, but i don't notice it any more. Switching between the monitor and the phone or paper in front of me works, which is why I wanted the bifocals in the first place. I only use the old glasses for watching TV, probably meaning that my TV-watching posture sucks, but fortunately I don't watch a lot of TV. I still take off the glasses for sustained book reading.

Re: Aging and Eye Problems

#55

Post by picofarad »

WarOnPrivacy wrote: post #47
TacticalCoder wrote: post #17

Earlier quoted context omitted.

Like you but it began at 51 y/o. No glasses 'till 52 y/o. We had good runs mate! Same: presbyopia and I hate low-light now: it's just as you wrote: better acuity in bright settings. Either during day time or with proper lighting. Still can read signs from the car (say while on the highway) before anyone else so there's that. Can't really share any experience as I don't have a good understanding of glasses/focals.

> Like you but it began at 51 y/o. No glasses 'till 52 y/o. 40s but it's been a slow grow. I got by on magnifiers until 50 or so. I'm still on my original script. My indy eyeglasses guy got taken out by a hurricane and he was the last one. I can't bring myself to visit s vision mill.

I had good luck with the eye-q device, but I am unsure if it is still made or supported. If you dont have a complex scrip, it works fine. My lenses got scratched so I just ran out of luck, dont think there's much to be done with glasses for me anytime soon.

It gives you a prescription after running it 3-6 times for each eye. It is tiring but much cheaper end-to-end than going to an OD or whatever. And just get glasses online! Dont get extorted at the "vision mills"!

Re: Aging and Eye Problems

#56

Post by myops »

I'm 50 and my -7 myopia is now joined by early presbyopia.

Buying glasses is a hassle, strong dislike! Bifocals/progressives are expensive. Stores here (nordics) upsell annoyingly, on both frames and lenses. Never regular prices, always sales or 2-for-1 style campaigns. Hard to tell apart quality steps from mere money grab upsells. For progressives different stores offer 3-5 lens qualities, each using vague naming like "better" and "supreme", so cross store price/quality comparison is opaque. Then there's lens thickness options (1.6, 1.67, 1.74 where higher is thinner and costlier). One store said 1.74 is the only feasible option with my -7. Another said 1.6 is ok if I don't mind a thick lens look. Lots of treatment options (basic anti scratch vs more "advanced"). Expensive to just iterate (buy, try, buy differently), especially since the presbyopia will worsen over a period of years, which means buying new again in a year or two.

Re: Aging and Eye Problems

#57

Post by picofarad »

kps wrote: post #42
jorl17 wrote: post #26

Earlier quoted context omitted.

Hear, hear. Back when I attempted to be an edgy college guy, I carried my Gentoo with green foreground on a black background. EVERYWHERE. My pcmanfm (yes, I was one of those) looked glorious in true matrix style (and I did have a matrix screensaver). I did it because it was "cool", not because I felt that dark mode was better. Then when I changed to MacOS, since there wasn't native dark mode, I don't think I ever _th…

> Every letter seems to transfer some of its weight onto neighboring letters, even those in a previous paragraph with quite a large vertical gap! This is probably astigmatic halation. For me it looks something like this: https://www.threads.com/@mrmedina/post/CuciL0Uvam9 If a product/service/site is dark-mode only, I can't/won't use it.

Only some dark mode does this to me, and only on some screens. I find "light mode" bearable, but anything else cute like custom fonts or whatever and I am seeing 33 as 88 and 100 as loo.

I have schwas in my vision, like swishy halos around light sources. At one point I counted 12 distinct mirrored images. Driving was awful.

Reading my 4k screen was impossible, gave it to my wife and switched to a 2k HDR at 175%.

I still have swishes but only 1.5-2 and much dimmer. It used to be impossible to read the clock on my stove at night because it would just be a green smear!

Re: Aging and Eye Problems

#58

Post by myops »

CyLith wrote: post #30
EvanAnderson wrote: post #14

I'm nearly 49 now. Presbyopia (the loss of ability to close-focus) came on strongly for me at about 46. It was almost like an overnight change. I've also lost significant acuity in low light, but that seemed to come on more slowly. I got my first bifocals last year. I got the "no line" variety and, so far, I hate them. The focal distances I need for reading, viewing my phone, and other close work are at the absolute…

Optical engineer here. This is what they don't tell you about continuous/transition/progressive bifocals: optically they don't work. The lens design is an overconstrained optimization problem and the solutions they come up with end up compromising a lot on everything, to the point that it is practically useless.

What's your lay of the land when it comes to different glass qualities and glass thickness options? Stores here (nordics) have around 4 different glass qualities for progressives, with varying and opaque names like "better" and "supreme". Thickness starts with 1.6 but store people push for 1.67 or 1.74. I get strong upselling vibes, but hard to say. (Is the "supreme plus" noticeably better than "supreme" or merely there for upsell anchoring effect, to make people pick "supreme" without feeling they overspent?) Are there high quality information resources for consumers on what the underlying lens material and processing technologies are?

Re: Aging and Eye Problems

#60

Post by madduci »

retinaros wrote: post #59

4k screen is minimum for dev work and text clarity should be priority above any other feature. this will help a lot over the years

As owner of 4K monitors, I can confirm. When in go to the office, where only HD monitors are there, I am basically degrading my work productivity, since I can barely read, since big windows are overall too.
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