Uploaded May 2025 | Updated September 2026, 2 weeks ago
Not everybody sees these lines of light at night. I don't!
But there are four key reasons that tons of people see this.
In this video, we break down:
1) Astigmatism - What it is, how it affects your vision, and why it causes light lines
2) Pupil dilation - Why your pupils opening up wider at night exaggerates the effects of astigmatism and other vision errors
3) Higher-order aberrations - Other vision errors besides astigmatism like coma, trefoil, and quatrefoil
4) Diffraction - The weird property of light that significantly contributes to light lines going in multiple directions
And please let me know if there are any specific eye- or glasses-related topics you'd like me to talk about!
_____________________________________________________________
Sources for this video:
- Kids Fun Science (Kids Fun Science)’s 2019 YouTube video titled “Holiday Spec Holographic Lenses Experiment (diffraction glasses)
- OpenLearn from The Open University’s 2012 YouTube video titled “Apertures and Diffraction - Exploring Wave Motion (3/5)
- Physics Videos by Eugene Khutoryansky's 2016 YouTube video titled "Diffraction interference patterns with phasor diagrams"
- BRIGHTSIDE's 2021 YouTube video titled "What Happens Inside Your Eyes - 3D Animation"
All of the background music consists of instrumental versions of songs by Connor Price. Big thanks to Connor for making his music free to use!
______________________________________________________________
ABOUT ME:
Here at Vision Vibes, I dive into eye-related topics ranging from understanding your lens prescription, to laser eye surgery, to the biology of your eyes. Visual, laser demos make abstract concepts much more clear and easy to understand, showing exactly how light is being focused by your eyes and corrective eyewear/contacts.
______________________________________________________________
My kid's book: "Larry Laser Finds His Spark"
Follow Larry Laser on his journey to discover all the amazing things lasers are used for. From laser welding, to eye surgery, to high-speed internet, Larry learns about how he can change the world with the help of Lexi Lens.
BUY NOW: amzn.to/3W6RRfr
______________________________________________________________
📢 Stay Connected!
Instagram: instagram.com/visionvibescory
TikTok: tiktok.com/@visionvibescory
Email: VisionVibesCory@gmail.com
SUBSCRIBE: youtube.com/user/UCDY3vVVfH-s6WgOFD0EFMBg?sub_confirmation=1
#science #optometry #astigmatism #stem #vision #glasses #health
Not everybody sees these lines of light at night. I don't!
But there are four key reasons that tons of people see this.
In this video, we break down:
1) Astigmatism - What it is, how it affects your vision, and why it causes light lines
2) Pupil dilation - Why your pupils opening up wider at night exaggerates the effects of astigmatism and other vision errors
3) Higher-order aberrations - Other vision errors besides astigmatism like coma, trefoil, and quatrefoil
4) Diffraction - The weird property of light that significantly contributes to light lines going in multiple directions
And please let me know if there are any specific eye- or glasses-related topics you'd like me to talk about!
_____________________________________________________________
Sources for this video:
- Kids Fun Science (Kids Fun Science)’s 2019 YouTube video titled “Holiday Spec Holographic Lenses Experiment (diffraction glasses)
- OpenLearn from The Open University’s 2012 YouTube video titled “Apertures and Diffraction - Exploring Wave Motion (3/5)
- Physics Videos by Eugene Khutoryansky's 2016 YouTube video titled "Diffraction interference patterns with phasor diagrams"
- BRIGHTSIDE's 2021 YouTube video titled "What Happens Inside Your Eyes - 3D Animation"
All of the background music consists of instrumental versions of songs by Connor Price. Big thanks to Connor for making his music free to use!
______________________________________________________________
ABOUT ME:
Here at Vision Vibes, I dive into eye-related topics ranging from understanding your lens prescription, to laser eye surgery, to the biology of your eyes. Visual, laser demos make abstract concepts much more clear and easy to understand, showing exactly how light is being focused by your eyes and corrective eyewear/contacts.
______________________________________________________________
My kid's book: "Larry Laser Finds His Spark"
Follow Larry Laser on his journey to discover all the amazing things lasers are used for. From laser welding, to eye surgery, to high-speed internet, Larry learns about how he can change the world with the help of Lexi Lens.
BUY NOW: amzn.to/3W6RRfr
______________________________________________________________
📢 Stay Connected!
Instagram: instagram.com/visionvibescory
TikTok: tiktok.com/@visionvibescory
Email: VisionVibesCory@gmail.com
SUBSCRIBE: youtube.com/user/UCDY3vVVfH-s6WgOFD0EFMBg?sub_confirmation=1
#science #optometry #astigmatism #stem #vision #glasses #health
