- This topic has 23 replies, 18 voices, and was last updated 6 years ago by slowoldman.
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4-eyed g1ts of STW – depth perception or clarity?
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gaidongFree Member
I too am now a 4-eyed g1t of STW but a novice seeking wisdom…
I’ve been lucky enough to have had 37 years of 20/20 vision and despite having a glasses-wearing brother was totally ignorant of the everyday impact of poor vision. I last tested 20/20 (or French equivalent) during a work medical in Sept 2016 but the doctor said there was trouble on the horizon. Oh the irony of not seeing the horizon coming, I lost my top notch vision within a month, Nov last year. Fatigue, headaches, moving head back and forth (not like that) to work.
The opthalmologist diagnosed me with astigmatism, and apparently mine isn’t too bad. (I don’t have my prescription to hand, currently working in Tagaung, Myanmar). I can’t imagine what it’s like for those with severe eye problems.
Why have I posted in the bike forum? Well, when I left the optician in my new spectacles I was tripping over everything and felt I was 3 metres tall. He said I’d get used to it but a month in, I have not. I seem to have a choice between depth perception (no glasses) or clarity (glasses). I am getting a bit of MTBing here in Myanmar but nothing technically demanding. However I’ve spent the last week in the mountains and the walking downhill has proven quite difficult – falling much more than I usually would as I can’t judge my paces. So thinking forward to the summer and the Alps…
How do you lot ride downhill with dodgy eyes? Glasses off to gauge drops and accept vision will be blurry anyway due to vibration, or glasses on to admire the views, followed by a faceplant at the first step?rossburtonFree MemberSounds like the inter-pupil distance is messed up, you could ask them to check.
scotroutesFull MemberSounds to me like the curvature of the lense is wrong or something. Yes, there’s a little period of familiarisation, but nothing like that
fossyFull MemberYour glasses are wrong – they shouldn’t do that.
Go back and get them to sort it out as it shouldn’t alter perspective.
My eyesight went after I was 18.
ads678Full MemberI have really bad astigmatism in both eyes.
My glasses and contact lenses are correct so I don’t have any of the problems you describe.
I think you need to go back to the opticians.Ming the MercilessFree MemberGet your glasses set up so that you focus on everything 6 inches in front of your bars…….
#jediwasnotimpressedwiththistechnique
At 48 I’ve just got reading glasses and been told I’m slightly short sighted in one eye which is exasperated by the other eye being very good.
#gettingoldsucks
gaidongFree MemberHmmm, that would explain a few things wouldn’t it! The opthalmologist did use a series of lookey-in-eye jobbies, seemed professional. Well pee’d off if I have to change glasses after dropping hundreds on first set. Cheers for the input.
rossburtonFree MemberIf they messed them up, they should replace them. It’s possible that they wrote “89mm” on the form and the lab made the lenses at 98mm, or something stupid.
cookeaaFull MemberIf they messed them up, they should replace them. It’s possible that they wrote “89mm” on the form and the lab made the lenses at 98mm, or something stupid.
Sounds like they’ve mixed the OP’s up with this fella’s glasses perhaps…
gaidongFree MemberCould this not be a new class of DH,wearing comically inappropriate eye corrections?
kelronFree MemberI had this when I tried disposable contacts, because they weren’t properly matched to the ‘axis’ part of my prescription. My limited understanding is it describes the way your vision is distorted by astigmatism, so if this part is off you still get most of the benefits of clarity of vision but you are effectively looking through a lens that’s adding further distortion rather than compensating for it.
tjagainFull MemberAs someone with an astigmatism you do get this effect but it should not be that severe. I can’t play golf in my glasses for example – I always top the ball as I am looking thru the bottom of the lens. Lenses for astigmatism are more like prisms than standard convex or concave lenses.
Something is wrong with your set tho if you are getting such strong distortion
MartynSFull MemberAstigmatism here as well (quite a strong one)
When I changed my glasses I had what you described, depth perception all wonky, walking was interesting!
It was bad enough that I took the glasses back to be checked.
It took me about 10 days to settle. Do I guess the point of the long post is something isn’t right with your glasses.I don’t ride in glasses, contact lenses for the win. WAY prefer them to my glasses generally but I’m aware that constant lens wearing isn’t good.
garage-dwellerFull MemberAnother vote for prescription/lenses foul up.
I have a very odd prescription and zero issues with depth perception while wearing glasses and I wear specs every one of my waking hours (except shower etc.).
Snooker and pool are a minor issue as I can’t look through the right bit of the glasses so end up playing in an odd stance but beyond that.
Hob-NobFree MemberI think it’s a glasses and astigmatism thing – they do take some getting used to from experience.
I am also a mild sufferer, but I only wear contacts – have tried glasses in the past and just got annoyed with them, so gave up.
I also experienced this sensation, was told you get used it, I guess it’s your body recalibrating the information it can now see again.
gaidongFree MemberThanks all. I’ll check in with the optician when I get home in a couple of weeks. I think I’ll stick with glasses rather than contacts, but my goodness aren’t they dirty all the time.
mjsmkeFull MemberContact lenses solved this issue for me. I wear glasses most the time but struggle with glasses for everyday things like decorating – glasses cause straight lines to appear curved, shaving – can’t see past my nose and they get in the way, cooking – they steam up.
MadBillMcMadFull MemberOff topic, that’s along way north of Mandalay. What are you doing there?
MadBillMcMadFull MemberOn topic. I’d also say try contacts. I’m blind as a bat. Anything beyond my nose is blurred. Recently being told I have a mild stigmatism.
I have some new stigmatism contacts but don’t like them. Ordinary ones appear better to me.
myopicFree MemberAfter 2 pairs of glasses that I couldn’t see out of and felt exactly as you describe, the 2nd optician checked my prescription and discovered my astigmatism was written in such awful writing that the lens were 180 degrees out. He then confided it was his wife who had done the first test and it was her writing to blame 👿
Once fixed they were fine. Worth getting checked!gaidongFree MemberContacts have always seemed so faffy. Strange bottles of fluids, little screw top plastic containers and pulling eyelids hither and thither. That said, even with sunnies I’ve always been a steam-meister, especially when riding. I have developed a nose-wrinkling frowning technique to increase airflow over the lenses.
@madbill, I direct an archaeological project in Myanmar. Currently excavating late prehistoric levels at Halin where we find beads made from non-locally available stone. I was at Tagaung looking for raw material sources, e.g. agate and carnelian, that we can chemically test for compatibility and thus reconstruct the ancient exchange networks. I was also after copper sources, so much creeping around trying to take samples without aggravating the not-entirely-legal miners. All good fun.
spooky_b329Full MemberAnother vote for return to the optician. They should be able to reglaze your existing frames…if not, pretend you want to order some swanky wrap around sports glasses that they don’t sell, and ask for your inter-pupil distance. They should also be able to measure your existing glasses to identify if they are wrong.
Then order new lenses at somewhere like ciliary-blue online, you need that pupil distance and they will send you a box to send in your frames. Get a basic set to start with to keep the costs down whilst you see if they sort the issues, you have the option of getting more expensive lenses with an ultra-clean coating. After 25 years of glasses I now have ultra-clean lenses, much less crap sticks to them and you can clean marks off with a dry cleaning cloth rather than needed 2 or 3 attempts with cleaning solution and still finding them smeary.
When I first got my glasses (also astigmatism) I remember walking out of the shop and the brick paving in the high street appearing to roll up behind me like a half pipe. If you are wearing them all the time your brain should work it out and you won’t notice it. If you are struggling and just putting them on occasionally that would explain why they still seem strange.
(I’ve also had the odd pair that I’ve never got on with…depth perception just felt a bit ‘off’ especially peripheral vision when driving) I fiddled around with them, never work out if the frames were bent and lenses miss-aligned, too close to my eyes, or pupil distance wrong)
slowoldmanFull MemberWhen I first got my glasses (also astigmatism) I remember walking out of the shop and the brick paving in the high street appearing to roll up behind me like a half pipe.
I’ve had this too and straight lines curving (e.g tiled surfaces). Sorts itself out within a day though (or should).
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