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Eyes and Seeing

Lesson Plans
  1. Anatomy - Eyes (Franklin Institute)
      "The eye is made up of several parts: the cornea, pupil, iris, lens, and retina. Each has an important function." 5-02

  2. Eyes (Franklin Institute)
      "The eye is made up of several parts: the cornea, pupil, iris, lens, and retina. Each has an important function." 5-02

Materials
  1. Interactive Human Eye Tool (Healthline.com)
      "The eye is a complex and amazing organ filled with nerves, lenses, liquid, and more. Not only does it give us the ability to see the world around us, but it also brings that world in color, in three dimensions, and even under low light." 08-11

Multimedia
  1. Anatomy of the Eye (LensShopper.com)
      "The eye can be compared to a camera. They both gather light and transform it into a picture that we can interpret. They both focus the incoming light with the help of a lens. The eye uses the retina to produce an image whilst the camera uses film." Provides a magnified view of each part of the eye.

  2. New Type of Lens Replacement (USA Today)
      British surgeons have developed a new, more precise, lens replacement. 01-10

News
  1. -02-26-07 Blind Woman Learns to See (Time Magazine)
      "Neuroscientists have long been convinced that the first few years of life are a crucial period for brain development--a time when connections between neurons are being forged at a prodigious rate as a baby learns to make sense of the external world. Interfere with that process, and you can cause permanent, irrevocable damage. If a child is born blind, for example, it's pretty much over by age 6. You can fix the eyes, and they might be able to perceive light and dark. Without the right visual circuitry in place, though, there's no way to form images--the essence of true sight."

      "But then there's the patient known as S.R.D. Discovered by researchers four years ago in Ahmedabad, India, she was a 32-year-old, dirt-poor maid who had been born with severe cataracts. They were removed surgically when she was 12--and within a year, despite what neuroscientific dogma would have predicted, S.R.D. learned to see." 02-07

Papers
  1. -A Dress Shows That Color Doesn't Exist by Itself (Time.com)
      "If two people see color so differently, what does that mean for how we perceive each other. What does that mean for how we perceive ourselves?"

      "Color is, quite literally, a figment of your imagination, Lotto said. It only exists in your head. Bevil Conway, a neuroscientist who studies color and vision at Wellesley College, explained it this way: “Color is this computation that our brains make that enables us to extract meaning from the world.”

      "Of course, if you want to get technical about it, there are receptors called cones in our eyes that act like little color channel sensors. One cone processes blue, another processes red, another green. An elaborate network of sophisticated cells in the brain compares the activity of these cones, and then signals from our brain produce the impression of colors. This system is working furiously, all the time." 02-15

  2. Eyes Picture Increases Honesty? (Newcastle University - Bateson)
      "Scientists have found a way of making people behave more honestly in an experiment that could aid strategies for tackling anti-social behaviour." 09-06

  3. How to Avoid Eyestrain (CNN News)
      "Digital eyestrain is now a common problem. Eye and vision problems are reported in 70 to 75% of computer workers, according to the American Optometric Association."

      "Headaches, eye pain, redness, watering, double vision and loss of focus are all associated with digital eyestrain." 02-14

  4. Melanin in Eye Protection (Agape1.comYahoo.com)
      "Melanin absorbs light smoothly over a broad spectral range. It absorbs the higher energy light more strongly than the lower energy light. So it absorbs UV more than blue, and the blue more than green - and so on. In this way melanin provides protection to the lens of the eye against UV - thereby decreasing the risks of cataracts; then it provides near optimum protection to the retina by filtering the different colors in proportion to their ability to damage the tissue of the retina - thereby reducing the risk of macular degeneration. Because the blue light is reduced, so is the glare; and vision is thus enhanced. However, blue light is not eliminated so that color balance is maintained." 03-07

  5. New Lenses Have Adjustable Focus (CBS News)
      " 'Superfocus' glasses change the strength of their liquid lenses, enabling you to see different distances by moving a tiny, adjustable lever." 5-02

  6. Observing the Sun and Solar Eclipses (Solar Center)
      Provides methods to safely "observe" the sun. Never look directly at the sun or view the sun through binoculars. Never look at the sun through a telescope without specially designed filters. Viewing the sun directly or through lenses can cause permanent damage to your eyes, even blindness. 3-02

  7. Polarized Lenses (Agape1.comYahoo.com)
      "Polarized lenses are unique lenses that work similarly to a Venetian blind. A blind only lets in light at certain angles, which is how a polarized lens works. With the removal of the sun’s glare, objects become more distinct and are seen in their true colors. Reduced glare off water, roads, and other objects make the polarized lens a favorite for water sports, fishing, cycling and driving." 11-07

Purchase Resources
  1. Goggles - Safety Goggles (ABCSafetyMart.com)
      Provides goggles to protect the eyes. Awesome Library does not endorse these products but lists them as examples. 11-02

   
   


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