What is #astigmatism? Why does it make my #vision blurry? And how did I get it? https://theconversation.com/what-is-astigmatism-why-does-it-make-my-vision-blurry-and-how-did-i-get-it-256235 #health #eyes #science #STEM
Edgar Wallace schrieb "Die Toten Augen Von London", in der Realität sind es "Die Blinden Augen Von Gilching". Die Werte an sich sind schon schlecht, die Kombination der Werte macht daraus eine exotische Herausforderung. Sieben Wochen hat es bis zu den neuen Linsen gedauert. Der Frust über die eigne Blindheit sitzt tief. Wenn ich einen Führerschein hätte, müsste ich ihn wahrscheinlich abgeben.
How good is my camera lens?
This is a series of images of an artificial star as seen by a camera lens and digital camera. They range from one side of best focus, through focus, and onto the other side of focus.
I see two errors:
1. Collimation/alignment
2. Astigmatism (probably pinched optics...bad optomechanical support)
I will disassemble this lens to investigate further.
https://www.skyatnightmagazine.com/advice/how-to-star-test-a-telescope
"Christmas is so much prettier when you have astigmatism." One for my lad, who'll find this funny! #astigmatism #BlurryXmasTree #BlurryXmasToOneAndAll
My eyesight test did not go as well as expected. The astigmatism in one eye has become much worse.
I need to go back in a year rather than two, and I also have a few other issues that may be 'normal/stable' and due to improved detection, but will need monitoring.
New lenses are going to be expensive.
Let’s talk about dark mode and accessibility! There’s a myth that dark mode is good for accessibility, because it improves text readability. It's not always true.
The full article and resources on my blog: https://stephaniewalter.design/blog/dark-mode-accessibility-myth-debunked/
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#LASIK #VisionCorrection #LASIKSurgery, #LASIKTreatment, #astigmatism, #eyesurgery
@MiaWinter I guess it's safe to say it is normal here in the #Philippines since the early-90s. ^_^
Both with and without lenses.
I used to wear one in the early-90s, during my elementary years. I had to hide it from the family because they don't like the idea; and back then, it was believed it will damage your eyes. (Unless the lens is plastic.)
My fancy glasses was the Einstein model. Haha.
I now wear prescription glasses because #astigmatism. It was 2011 or 2012 when I switched to “real ones”. Many of my co-workers around that time also wore fashion eyeglasses. ^_~
Also, there are more reasons to wear zero-grade eyeglasses today, two such are computers and blue light. Some of the people I know wearing glasses are only wearing it for extra protection.
This is me 
Has anyone got, seen, or can make up mock-ups of how points of light (or... very bright text on a dark background) can look to someone who suffers halos with astigmatism?
If yes to any of the above, may I use them in a talk?
Thank yooouuuu in advance!
#astigmatism #accessibility
@danielpunkass
Ugh. #Astigmatism corrections are THE WORST. Mine seem to float all over the place from day to day.
It took FOUR tries to get my latest pair right, and even then some days they’re *still* blurry.
Astigmatism. Sucks.
I was going to post this last night but forgot to. Turns out I have #astigmatism, which means either my lenses or something else with my eyes is egg-shaped and not focusing the light properly so for me far things appear blurry.
New glasses have arrived! I can see clearly again.
This is what $1400 buys you.
Do you prefer 1 or 2?
I’ll do that again.
Do you prefer 1 or 2?
#NewGlasses #LegallyBlind #Astigmatism
Photo description: Head and shoulder shot of author posing with new distance and reading glasses.
I was in grad school taking an optics class before I learned that people are NOT supposed to see like this at night. #Astigmatism
For anyone else into self-measurement of #eyesight, here's a tool I just made to help you figure out what the axes of your #astigmatism are (if present): https://jeremy.org/misc/astigmatism.html
Apparently getting #LASIK or #PRK while having #astigmatism is a recipe for a really bad time, can't believe this isn't wider know or talked about often
I’m #gobsmacked by how my #vision has deteriorated over the past year.
The need for #readers just so I can clip my fingernails is a real thing now. I remember when I was a kid, I was able to hold up money closely and focus on the little details. Now I can’t make out anything unless it’s at least two feet from my face.
Oh, and I have #astigmatism and things like lights have a halo around them now.
I was mostly OK losing half my hearing, but am having much more difficulty with my vision.
Played around with #PSVR2 last night. It LOOKS great and reacts well!
It's not without its flaws, though. I have long hair and the rear head support keeps sliding upwards and I feel like it's going to pop right off my head. I'm not a fan of the included earbuds but I have good ones I used for PSVR1 that I'll try. My #astigmatism makes the eye tracking feature complicated, I have misclicked several menu items because my eyes moved at the last moment.
Oh, and my room is too dark.
I bought a telephoto lens recently.
https://tokinalens.com/product/sz_900mmpro_reflex_f11_mf_cf/
I found that optical quality appeared to be good...at least for indoor tests.
Then I took it outdoors, where temperatures are cool in the winter months. Image quality suffered...horribly.
See image captions.
In cold temperatures the lens appeared to be giving images with lots of astigmatism.
(to be continued)
#photography
#TokinaLens
#LensRepair
#BadDesign
#DesignFlaw
#astigmatism
#MirrorSupport
) 
