Why Astigmatism Causes Blurry Night Vision (Home Astigmatism Test)

What is astigmatism, and why does it cause blurry night vision? Dr. Guymon will explain astigmatism, and give you a at-home-test you can do to see if you possibly have astigmatism.
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WHAT IS DISCUSSED IN THIS VIDEO
A common symptoms and complaint of astigmatism is blurry night vision. This symptom can be from other conditions as well, but astigmatism is one of the top causes. It all can depend on the size of the pupil The large and more dilated the pupil is, the more peripheral light rays can be unfocused due to astigmatism.
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🕒TIMESTAMPS🕒
0:00 Astigmatism Explained
3:44 At-Home Astigmatism Test
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#astigmatism #blurryvision #dreyeguy

[@craftinapahantasiaartist]

Oh my gosh this explains so much, I have astigmatism and I’ve noticed that at night everything is so blurry (already explained my current vision to my eye doctor). Thank you so much for making this informational video!

[@kkevinj1]

How many people got astigmatism AFTER glasses??

[@PwCollabe]

Me

[@minimasuo]

What great timing! I had cataract surgery a month ago and can already see so much better, but I was told I do also have an astigmatism and now I understand what it is and why it's worse at night! Thanks so much for another informative video!

[@julilla1]

I've gone to the same doctor for 20 years now, and some years they say they think I have a slight astigmatism, other years they don't. So I don't know, lol. I think I'm just so myopic, everything is a bit blurry, even with correction. Man, I can't wait to get cataracts!

[@DrEyeGuy]

I have patients tell me that all of time... can't wait to get cataracts so they can get cataract surgery. 😁

[@user-sw5hh2dw6e]

omg 100%

[@MrCheffery]

This might explain what's going on with my vision...

[@Max-fq9le]

I have Astigmatism but I’ve healed and I just got Astigmatism by looked at the Astigmatism Test 😢

[@A_Man_Named_Mark]

I just realized recently that I have this. But I have really good vision (day and night), and when I get halos and streaks, I just focus where I want to see (best way I can explain it), and it goes away.

[@ranjitdhiraj9974]

Thankyou 👍👍👍👍

[@melissacopeland5147]

First to comment 😊.....i was diagnosed a couple years ago with astigmatism 😢.....my eyes be very blurry .....also i have severe dry eyes 🙏.... thanks for sharing this video 💯😊💕

[@DrEyeGuy]

Thanks for being the first! 🙂

[@fraisameg4939]

Good morning Dr Guymon, I had a question, I do have a astigmatism it’s at 100, I wanted to know if they have color contacts for It online ? my Eye Dr told me I could do no prescription color lenses and wear my glasses , would that help the astigmatism change in number to go down ? As well since I only where my glasses at night when it’s day time and I take my glasses of would that be okay to have the lenses on .I can see good during the day it’s just at night I need them.

[@uuhAce]

I know this is unrelated, but do you have any tips for hybrid contact removal? I can get it most times fine but sometimes the plunger just seems to stick to the contact

[@brianm655]

My glasses were get at night 4 months ago, now they are not. I do have an Astigmatism in the right eye. Wearing contacts are better for me at night. My glasses are great in the daytime. Do you think i need more power in my lenses?

[@Joinabhilash04]

I see double vision after ICL surgery, closing my right eye I see the shadow on the left side, closing my left eye I see a shadow on the right side of any bright object especially in low light or Indoor lighting conditions.

[@archieinfansoherradura75]

What is the treatment of this disease

[@hard2hook]

Hi Dr. Guymon, Great video. I have a quick astigmatism related question - I had LASIK years back and my distance vision is still pretty good, but I do wear glasses for computer work (+1.0R/+1.25L) and close up reading (+2.25) (books/iphone). I have astigmatism (-0.75/90) in my left eye, so should I be getting VR Lens inserts the mirror my computer work/astigmatism prescription, or lenses that just account for the astigmatism? Keep up the fantastic work and thanks.

[@bendietrees]

Optician here. Your computer prescription is based off the distance between you and your computer, which is typically about arm's length. If you are going to be sitting in front of a computer or monitor about arm's length distance from you then you will likely want the computer rx in them as well as the astigmatism correction

[@redblue40rc33]

That's what I got past several years...dusk dark was getting bad, like thinking I was seeing things in the woods or on highway at night....now I have corrected lenses for it and bifocles..I'm 48, been wearing glasses for 38 yrs.....it's a change to have these special scripts for stigmatism.....but what can I do, I can see clearly up to a mile like nothing now day or night 😊

[@fullyactivated]

In a bright sunny day, my astigmatism is reduced, so my so that it’s almost completely gone, so it makes sense at night it is worse. (I don’t need glasses for astigmatism as it’s only 1.25)

[@rajsigma007]

Does this cause halo effect or starburst around bright light like sunray reflection?

[@lookas1209]

My problem is my right eye i cant see letter ( blur vision )when i close my left eye. What can be the cause of this....

[@mleii1169]

So I've already been diagnosed with Astigmatism and I noticed a weird thing about it so I am wondering if I have something else. And your video made it even clearer to me that what I'm noticing exists. Using that dial test the horizontal lines are the dark ones that are very clear and the horizontal ones are blurry. But at say book distance away, on my phone, the vertical lines are the ones that are dark and sharp but the horizontal lines are the ones that are blurry. Which has me wondering why am I seeing this as it makes no sense if it's the shape of my eye I would expect the bluer to be the same direction no matter the distance. What might cause that? Also am wondering about my glasses prescription as perhaps it's the thing that is making my eyes so tired during the day as I'm much closer and looking at a computer all day. But the prescription was set for the distance based upon a chart. That and pretty much all of my vision issue is in the cylinder as the sphere is either around .25+/- or plano. What might be causing this as perhaps I'm misdiagnosed? I've asked my eye dr about it but he says he doesn't know why. Me, engineering mind, has me really puzzled as to what is going on here as it makes no sense. It makes me wonder if my vision issue is somewhere else in the system. What might I talk with my eye Dr to help make sense of this?

[@mleii1169]

If it helps, my current prescription is at around OD +.5 sph -3.25 cyl 95 axis and OS +.25 sph -3 cyl 77 axis. I'll also add that night time I don't see all these lines mentioned or shown. It's mostly just text that's an issue for me, even looking out the window without glasses or at the TV (again except for text) it all appears most clear to me.

[@mleii1169]

Curious if you've had any patients with a similar issue and how you handled their prescription. I'm noticing the zone for where it seems to switch is right around where I normally have my monitor distance. Perhaps me using computers for the last 40 or so years has caused some other thing to occur/change with my eyes or some part of my visual processing.

[@42luke93]

When I look at my computer my eyes hurt. It is not due to excessive use. I mean 30 min in they hurt, what could it be?

[@animeotaku1773]

What are your recommendations for someone who still has issues seeing at night even with lenses? I have seen my eye doctor, but they just say it's a low grade astigmatism (1.00 vs 6.00). Is it common for lights to still look like stars at night even with glasses? Glasses make it a bit better but I sort of expected the scattering to go away completely when wearing glasses at night, given how low my prescription is. I am just curious because so far my doctor hasn't suggested specialized testing but I am still having vision issues at night due to light scattering.

[@bendietrees]

Try to upgrade the material your lens is made out of. As an optician I put most of my customers in trivex if i can. It's clearer. You may be in basic polycarbonate lenses which aren't as crisp due to how they are created. You want to make sure you have a very good premium anti glare coating as well. They all have different strengths. Crizal Sapphire HR is one of my favourites as it is one of the best with reflections.

[@animeotaku1773]

@@bendietrees Thank you for the suggestions I really appreciate it!

[@kkevinj1]

Trying to figure out how diet change fixed 80% of lasik induced astigmatism with a few other aberrations, some days a true 20/20 in an 20/25 to 20/30 eye. I quess its the new and improved tear film with no added inflammation from bad diet

[@jizburg]

Dont everyone get some starburst streaks when looking into a bright ligt?

[@lees_box]

I see everything doubled. I first noticed it only on very fine text on the screen but it's gotten progressively worse. Glasses fix it. I see things nice and sharp at a distance (only close stuff is actually blurred which is just age-related normal stuff) but yea everything is slightly doubled-up whether close or far.

[@DrEyeGuy]

Thanks for sharing!

[@lalaland746]

I was told I had astigmatism when I was younger but I never thought I had bad vision. I thought I saw crystal clear until I started to notice that when I read words/number or try to focus on something, I see them slightly blurry. It’s like the middle of the words are clear but the outside of the words are blurry. And I noticed that this happens when I see from a distance, up close I see just fine. I also remembered when I took driving tests at night, and I looked in the mirrors, the lights from the cars were bright and blurry with strong glares, it was hard to tell if the car was close to me or not. I was like “wait so my vision wasn’t crystal clear vision all along??” I thought my vision was the normal but it is not Lmao

[@tadanemarkbaker7157]

Am 13 years old and I recently noticed that my right eye was blurry when I was doing a eye test at my school for a medical check up every hear I think the cause is because am always on my phone everyday and should I go to a doctor??

[@bendietrees]

Yes go see an eye doctor

[@JillianShanahan]

Here’s one for you! I had astigmatism soooo bad. When I was pregnant with my last kid, it went away. They said it would come back it was just from swelling (pregnancy). But they’re still good! Ever hear of that?

[@DrEyeGuy]

Wow! I have seen vision change for the better and worse from pregnancy... but I've never seen astigmatism go completely away. That's awesome! Hopefully it never comes back.

[@JillianShanahan]

@@DrEyeGuy Having it gone is LIFE CHANGING.

[@Poisonus636]

Oh i know i have astigmatism cause when i see color their are like extra lines.

[@user-qp8bd9ce2f]

Hello, what is the thickness of the cornea? Is it normal? And in the case of high astigmatism, how thin is the cornea?

[@kkevinj1]

Most of the time it is caused by wearing glasses and is the lens being squeezed unevenly. Cornea not as much, more rare, glasses can be evil

[@saipriyaprabhaji5699]

Hello doctor, I have checked your video on diplopia. But I'm not sure what's causing my double vision to worsen over time. My glasses point have been decreasing over time and I'm concerned about it. Also I have hypothyroidism. I'm only 23

[@DrEyeGuy]

When you get new glasses with your new prescription, does it help the double vision?

[@saipriyaprabhaji5699]

@@DrEyeGuy yes doc, my vision is clearer with the prescription glasses

[@DrEyeGuy]

@@saipriyaprabhaji5699 Do you know what your double vision is caused by? Is it from an increase in astigmatism? If so, it's hard to say what make a prescription change in a person. it's possible you haven't hit a stable point in your prescription yet.

[@saipriyaprabhaji5699]

@@DrEyeGuy Thank you very much for the detailed response. I'm from India and love your videos! My point keeps fluctuating every 6 months or an year. I don't think it's astigmatism because as you mentioned in the video, i did self-exam of my cornea and the shape is near spherical. I seem to be having advanced double vision in one eye only since two years while the other was normal but it's been a month that I see the same thing happening In other eye too!

[@saipriyaprabhaji5699]

@@DrEyeGuy Also, I'm hard of hearing. Do you think it is in some way related to ears? I study a lot and stay on computer for long.

[@aishahashmi]

I am from Pakistan. I have dry eye problem. i want moisture Chembur glasses. How much will it cost?

[@DrEyeGuy]

You could contact them through their website and see if they could ship to Pakistan.

[@aishahashmi]

@@DrEyeGuy But I contacted them and got no response. Every video of yours is awesome and Thank you so much

[@DrEyeGuy]

@@aishahashmi hmm.. I could send them an email and see if they will respond to me.

[@pujamahata-wp4qe]

I have light reflection on my eyelashes for which I see peripheral rays coming out from light, microscoping circle in light I see double vision in light this is causing me a lot of problems please give me a permanent solution.😢😢😢😢