Fun Vision Facts – Part 1 Image

Fun Vision Facts – Part 1

Normally we write about serious topics about your vision. However, today I’m doing something different. Through our research we always run across fun vision facts, or interesting sayings that we’ve all heard our entire lives, but never realize where they originate from. Today I’m going to tell you where the common phrases “you’re blind as a bat” and “eagle eye” come from, plus a tip on speed reading on your computer. Enjoy!

Computer Screen Reading

People generally read 25 percent slower on a computer screen compared to paper.

Tip: In order to read faster you can use your cursor. When starting to read on your computer use your cursor to track exactly where you are. Whenever I do this, I always follow right behind of where I’m reading so the cursor never gets in my way. Following this tip makes it easier too keep track while reading. In addition, it helps you to keep a steady pace while reading. In fact, try it as you read this article now.

It Happened in the Blink of an Eye

Ever notice how many times your eyes blink? Probably not, because we blink so fast. One blink takes around 1/10th of a second. The average person blinks about 12 times a minute. That’s an amazing 10,080 blinks in a day (14 waking hours). That’s why when someone says “it happened in the blink of an eye,” it really means it happened fast!

Someone Loses an Eye

The phrase, “It’s all fun and games until someone loses an eye” dates from Ancient Roman wrestling matches where the only rule was, ‘no eye gouging.’ Biting, kicking and scratching were allowed, but the only way to be disqualified was to poke out someone’s eye. [Source: Useless Facts]

The Human Eye

  • The human eye can distinguish 500 shades of the gray.
  • The human eye weighs approximately 28 grams.
  • All babies are color blind when they are born.
  • The cornea is the only living tissue in the human body that does not contain any blood vessels.

Eagle Eye

Fun Vision Facts – Part 1 Image

Did you know the average person can see an object such as a rabbit from 550 yards away? It will look more like a spec, but you can still make it out. An eagle on the other hand can see the same rabbit from one mile away, or 1760 yards. So the next time you hear someone say “you have eyes like an eagle,” you know the true meaning!

Blind as a Bat

Have you ever been told you are blind as a bat? It’s a common misconception that bats are blind. In reality almost all bats can see. Their sense of sight and smell is well developed, but they don’t use eyes to “see” where they’re going. They use sound waves. They make high pitched sounds and then listen for the echoes caused when the sounds bounce off an object. Some bats can fly at a speed of up to 30 miles per hour. Their “radar” must be pretty good to fly that fast at night! [Source:]

So how did it work out using your cursor to read faster?

About the Author

Avatar for Tyler Sorensen

Tyler Sorensen is the President and CEO of Rebuild Your Vision. Formerly, Tyler studied Aeronautics with the dreams of becoming an airline pilot, however, after 9/11 his career path changed. After graduating top of his class with a Bachelor of Science degree in Informational Technologies and Administrative Management, he and his brother decided to start Rebuild Your Vision in 2002. With the guidance of many eye care professionals, including Behavioral Optometrists, Optometrists (O.D.), and Ophthalmologists (Eye M.D.), Tyler has spent over a decade studying the inner workings of the eye and conducting research.

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17 responses to “Fun Vision Facts – Part 1”

  1. Avatar for says:

    very good

  2. Avatar for Loribeth Loribeth says:

    I found that I read faster without the cursor. I have a mouse pad instead of an actual mouse, and I couldn’t move the cursor as fast as I can read.

  3. Avatar for Lepakiyo Lepakiyo says:

    Very good.You mean the eyes of an eagle are like a pair of binoculars?

  4. Avatar for Jane Jane says:

    Thank you, you always good in helping people with your nice and important topics.

  5. Avatar for Hurry Hurry says:

    thanks for the computer speed reading tip. It really helps out a lot for my eyes to exercise them. Eagle eye vision is comparable with that of the peregrine falcon’s vision.

  6. Avatar for Betty Betty says:

    Reading all the stories about seeing I have never heard you talk about Salzman’s Nodules. I have had them and was almost “blind as a bat” with 2200 vision in my left eye and starting to get the nodules on the right eye. I think it would be a good thing if you could talk about that.

  7. Avatar for mrudu mrudu says:

    thanks for the tips and the phrases

  8. Avatar for patrick patrick says:

    thanks for the hint re the cursor for reading, It works. regards

  9. Avatar for Alex Alex says:

    All your tips to improve my vision are great. Thank you.

  10. Avatar for anbu selvanayagam anbu selvanayagam says:

    crisp and good information,at right time. Anbu selvanayagam

  11. Avatar for Tyler Sorensen Tyler Sorensen says:

    I’m glad you all enjoyed this article. I think we will mix in random fun facts and tips like this more often.

    Betty, we will be sure to add “Salzman’s Nodules” as something to look into.

    To your vision — for life,


  12. Avatar for Lina Delica Lina Delica says:

    thanks for the tip, if found it effective to guide reading with the cursor. but I found it difficult to learn the three cups technique.

  13. Avatar for Simeon Z. Woheel Simeon Z. Woheel says:

    Thank you again for Fun Vision Facts and thanks for the advice to use the cursor to guide my reading on the computer .I didn’t know that the eagle eye sees far more than three times the human eye. Thank you for the tips.

    No, I am not as blind as a bat, but I often wonder how a bat will navigate its way around in the absence of an object for its sonar to bounce back to produce an echo?


  14. Avatar for Ginger Rowell Ginger Rowell says:

    I have followed your blog and been doing exercises sporatically and have seen some improvement in my near vision. I am still having some trouble with my distant vision and have recently been diagnosed with a cataract. Any suggestions? Any doctors in the Atlanta area that follow your methods?

  15. Avatar for Tyler Sorensen Tyler Sorensen says:

    Hi Ginger,

    Congratulations on the improvement on your near vision.

    The following links will help you to find a behavioral optometrist in your area – he or she should be able to help you:

    To your vision — for life,


  16. Avatar for Ting Ting says:

    Dear Sorenson,
    Thanks for the article. It really works by using the cursor. Can read faster.
    I had cataract surgery on one eye about 3 months ago, May I know whether I can do eyes exercises?

    thank you

  17. Avatar for Tyler Sorensen Tyler Sorensen says:

    Hi Ting,

    To learn more about Cataracts, check out the following blog post:

    To your vision — for life,


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