Boddities | Episode 5 | Why do bright lights make us see spots?

The video explains why we see spots after looking at bright lights, starting with how vision works. Light passes through the cornea and lens, focusing on photoreceptors that send signals to the brain. Bright flashes overstimulate these photoreceptors, causing afterimages. Prolonged exposure to intense light, like the sun, can cause permanent damage. The video emphasizes the importance of avoiding direct sunlight exposure.

What is the role of the cornea in the process of vision?

• It sends images directly to the brain.

• It converts light into electrical impulses.

• It focuses the image onto the retina.

• It covers the front of the eye and allows light to enter.

What happens to photoreceptors when exposed to a camera flash?

• They become permanently damaged.

• They improve in sensitivity.

• They get overstimulated and create an afterimage.

• They stop functioning temporarily.

How long can an afterimage last after exposure to a bright light?

• It lasts indefinitely.

• It lasts for a few seconds to longer, depending on brightness.

• It lasts for several minutes.

• It disappears immediately.

What is the potential risk of looking at the sun for too long?

• Temporary blindness.

• Improved night vision.

• Permanent vision loss.

• Increased eye moisture.

Is there a specific time limit for safely looking at the sun?

• Yes, up to 10 seconds.

• No, it's safe to look as long as you want.

• No, but it's advised not to look for more than a few seconds.

• Yes, up to 5 minutes.