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Are blue eyes really more sensitive to light?

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Manage episode 519827807 series 3362640
Content provided by Do you really know?. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Do you really know? or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.

The idea that light-colored eyes are generally more fragile is pretty widespread. They’re less resistant to sunlight and require more protection. According to Medical News Today, it’s estimated that around 8-10% of people in the world have blue eyes.

When our eyes are open, rays of light pass through the pupil, the black opening in the center of the iris. As you may know, the pupil dilates when it’s dark and contracts in bright light. When light rays strike the retina, they’re captured by photoreceptor cells like rod cells, which are involved in night vision and cone cells that enable color vision, among other things.

What’s the function of the iris ? Is sunlight dangerous for the eyes? Is wearing sunglasses enough to protect my eyes ? In under 3 minutes, we answer your questions!

To listen to the last episodes, you can click here:

⁠What is the olive theory from Tiktok?⁠

⁠How does the vagus nerve affect your health?⁠

⁠What is climate shadow, the newest way to measure your impact on global warming?⁠

A podcast, written and realised by Joseph Chance.

First broadcast: 24/6/2023

Learn more about your ad choices. Visit megaphone.fm/adchoices

  continue reading

2889 episodes

Artwork
iconShare
 
Manage episode 519827807 series 3362640
Content provided by Do you really know?. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Do you really know? or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.

The idea that light-colored eyes are generally more fragile is pretty widespread. They’re less resistant to sunlight and require more protection. According to Medical News Today, it’s estimated that around 8-10% of people in the world have blue eyes.

When our eyes are open, rays of light pass through the pupil, the black opening in the center of the iris. As you may know, the pupil dilates when it’s dark and contracts in bright light. When light rays strike the retina, they’re captured by photoreceptor cells like rod cells, which are involved in night vision and cone cells that enable color vision, among other things.

What’s the function of the iris ? Is sunlight dangerous for the eyes? Is wearing sunglasses enough to protect my eyes ? In under 3 minutes, we answer your questions!

To listen to the last episodes, you can click here:

⁠What is the olive theory from Tiktok?⁠

⁠How does the vagus nerve affect your health?⁠

⁠What is climate shadow, the newest way to measure your impact on global warming?⁠

A podcast, written and realised by Joseph Chance.

First broadcast: 24/6/2023

Learn more about your ad choices. Visit megaphone.fm/adchoices

  continue reading

2889 episodes

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