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No eye dea


Ian C

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OK, this is off the wall but in this melting pot of professions we have here I'd like to open the floor to debate this :)

 

Last friday I woke up and my left eye felt funny. Felt like a bit of pressure above it, like you've got a headache from looking at a screen too long, but without the pain. Didn't think much to it apart from "oh ffs". Anyway, I get into work, and I find I'm having difficulty reading text. If I shut my left eye, it's fine. If I shut my right eye, it's 'ghosted', like slightly out of focus. Hmm, thought I, must have slept on it funny or something :)

 

Well, it hadn't got any better by the afternoon and it was really getting on my nerves and I was constantly fiddling with my glasses and rubbing my eyes etc to no avail. So I went to the opticians for a checkup, see if I'd damaged my eye somehow.

 

Imagine my concern when, on checking the left eye vision with my current prescription lens in place, I had difficulty reading past the line with only four bloody letters on it! I couldn't do the next line, and I think I said "clucking bell" or something like that :( My right eye, I could do the bottom line no problems.

 

So after a full battery of tests, including periphal vision, blinding me with a bright light to check the back of my eye, and that ghastly eyeball pressure one where they shoot air into your eye, the optician says "yes, we've found out what's wrong. Your left eye has got better."

 

:wtf:

 

From a -4.75 to a -4.00 prescription. And as far as I'm concerned, it happened overnight as I'd not been irritated by it at all until I woke up friday morning, and then it crazed me (and still is - gonna sort a new lens out tomorrow now I know the change is probably here to stay). How the hell can that happen then?

 

-Ian

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Why did I bother lol :D

 

I don't have the prescription handy with me, I just remember the change was -4.75 to -4.00 and my right eye is -4.25 so left is now actually better than right - maybe I should wear my glasses like Denis Taylor in the meantime :D I mean it's not like a "it's -4 in one format and -4.75 in another" misunderstanding, the plain fact is, my eyesight has changed by quite a bit and quite suddenly, and actualy for the better :blink:

 

To answer other questions; £19.50 for the eye test, masturbation is possibly actually up slightly on average trending for some reason. I haven't stuck T-cut in my eye. I did go to Italy recently but only to lake gardy or wherever it was.

 

-Ian

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Keep your fingers crossed and in a few months maybe you'll have infra-red spectrum vision. Night vision driving here we come!

 

Certainly an odd thing to happen, I wonder if your eye is just thickening or rebuilding. Not accidentally stared at some lasers and flukely repaired your vision slightly?

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Lowering myopia is an associated sign of impotence, does happen...

 

 

 

 

 

 

 

 

 

 

 

:)

Anyway, there's a couple of things it could be. As Max said, there's 2 ways of writing a prescription, can you copy down your current and previous ones?

First up, how old are you Ian? When people approach their late 30s, you lose the ability to accommodate (which is when the lens in your eye is squashed by your eye muscles, becomes more convex and focuses for near). I'm pretty sure you're not over 35 so what's probably happened is that your LE might have been overminused at some point (which is very easy to do as people soak up more short sighted power as your eye muscles can accommodate for distance in that point and make up for it. A lot of people think this is sharper as things look bolder, it's the same as looking through binoculars the wrong way round, things stand out more). A lot of people like being over minused for distance as it makes you artificially longsighted so your driving vision etc would be superb... but it makes you more prone to headaches and blurriness with near tasks as your eye is accommodating for distance as well as near. The more close up stuff you do the more it will test your accommodation, it'll give up at some point if you're overminused. You might have happily been accommodating thus far but maybe not toleraing it as much now. Have you been doing a lot more hours of near work? Whether it's VDUs, reading, wiring etc?

The other thing it could be is this, but this is more if you're in your late 30s. Short sighted people's prescriptions do get better with age when you're pushing the 30s/early 40s bracket. Your intraocular lens loses elasticity at that time (so you lose you accommodation which is when people need reading glasses, happens to EVERYONE). Someone with no prescription or a long sighted will need reading glasses, a short sighted person will find reading up close with their glasses (or contacts in) more difficult and have to remove them for close tasks. As the lens loses elasticity, it loses it's tonus as well so the over all strength drops.. the result is you get more longsighted with age so you could drop from a -4.75 to a -4.00. It wouldn't have been overnight as such, you might just be noticing it now. This would do the same thing as if you were overminused as above, you'd be trying to accommodate more - the ache over your eye is usually your eye muscles aching.

The other option is a lot more simple... you could have slept with your eye in a funny place (oo-er) and changed the shape of it somehow. Usually when this happens, it's your cornea but you'd have some kind of sensation there normally. Did you get any new specs ordered? Will be interesting to see if it stays as -4.00.

Normally, muscle strain etc makes you MORE shortsighted. Say if you're on a computer 24 hours with your specs on, the computer is at 2/3m normally so your eye has to accommodate to there. Easiest way of thinking about it is that the dioptric power of your accommodation should be 1.5Dioptres to do that (from the focal length, 1/(2/3) = 1.5). This makes you more short sighted if your muscles spasm from looking at the screen that long and you can become artificially more short sighted for a little while. Your eye muscles can only make your eye stronger so i doubt it's any kind of muscle thing unless your specs were too strong in the first place as mentioned above. The only other time i've seen something similar is when someone went from a -4.00 to a -2.00, had the same symptoms as you. BUT, that is one hell of a shift and was very sudden. She went back to a -4.00 within a week. There was no explanation for that but she was on a lot of pyschosis meds and associated things but didn't know the name, i reckon it was something to do with those. I'd just see how it goes dude :)

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Thank you for your wall of text response :thumbs:

 

 

Anyway, there's a couple of things it could be. As Max said, there's 2 ways of writing a prescription, can you copy down your current and previous ones?

 

Finding my previous prescriptions could be problematic. I've got the thing they handed me after this checkup sat at home, otherwise I'd have to ask them for copies when I go in again.

 

First up, how old are you Ian?

34.

 

your LE might have been overminused at some point

I overminused once years ago and couldn't stand it, ended up not wearing the new glasses! I've had years of being OK with my glasses since then, although this pair is a "grip side of head" straight arms frame and I just don't get on with it so I'm going to use this as an excuse to get new frames :) The frame, despite loads of adjustment, constantly presses on the right more than the left so the right eye lens moves away from the eye. Really irritates me, dunno if it could have been affecting anything? But because I paid actual money for them, I've had them for nearly a year I think rather than changing them.

 

No problems other than the fitment issue, and in fact my prescription hadn't changed - I only got new glasses because the frame broke on my previous pair. So I'd been stable for 3 years at least with this particular prescription, and I'd not felt anything untoward.

 

Have you been doing a lot more hours of near work? Whether it's VDUs, reading, wiring etc?

 

Pretty much my whole life has been reading, VDU work etc inside and out side of work. Ironically, I took up running in the last two years or so so I've actually been getting out more and looking long distance more than pretty much I've ever done before...

 

you get more longsighted with age so you could drop from a -4.75 to a -4.00. It wouldn't have been overnight as such, you might just be noticing it now. This would do the same thing as if you were overminused as above, you'd be trying to accommodate more - the ache over your eye is usually your eye muscles aching.

 

Hah so another thing goes wrong once you get over 30 :D The thing is, I know myself and I know when things aren't right or 'new' and I literally did wake up with this and it's been very noticeable since, and I've had this prescription 3 years... :shrug: It certainly feels like an overnight change but if it's not possible then meh :)

 

The other option is a lot more simple... you could have slept with your eye in a funny place (oo-er) and changed the shape of it somehow. Usually when this happens, it's your cornea but you'd have some kind of sensation there normally.

 

I have a habit of lying with my right arm across my eyes (bridge of nose in crook of elbow) while trying to get to sleep at night. Done it for years, maybe something there. Also the day before I ran 5 miles in the heat and the setting sun was in my eyes. Nothing untoward, I thought maybe I'd bust a blood vessel or something :)

 

Did you get any new specs ordered? Will be interesting to see if it stays as -4.00.

 

Not yet, I waited to see if it'd stay, and it has been the same since friday morning, so that's nearly 4 days now. I'm going to order new stuff tomorrow because it's pissing me off :) And driving at night isn't very pleasant, I found...

 

Your eye muscles can only make your eye stronger so i doubt it's any kind of muscle thing unless your specs were too strong in the first place as mentioned above.

 

Can I exercise them to get rid of my shortsightedness? :D

 

I'm glad I'm way to squeamish with eyes to get laser surgery, what a pisser that would have been! How does that affect people who get it done?

 

Thanks again for your time :)

 

-Ian

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I'm glad I'm way to squeamish with eyes to get laser surgery, what a pisser that would have been! How does that affect people who get it done?

-Ian

 

Same thing happens which is why they say it's not permanent and opticians aren't that keen on it - if you were a CL wearer before your eyes are usually too dry afterwards to go back to them so after needing reading glasses, the long sighted shift and lack of accommodation to compensate means you have a distance Rx again - this is typically what happens when your mum and dad who may only have worn readers start complainin about the menus on the tele :D The other problem with that is, once corrected, you tend to lose a bit of contrast after laser surgery so night driving especially can be unnerving.

Back to your less myopic eye, see how you feel once you get the new prescription, night driving wise. Some people don't like minus being taken away for that :(

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see how you feel once you get the new prescription, night driving wise. Some people don't like minus being taken away for that :(

 

It'll be a darn sight (ahaha) better than it was saturday, I had trouble focussing on lights cleanly, which is a bit of an arse when driving at night.

 

I still don't think I minussed, I prefer that I've got a bionic eye now :D

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