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Eyes and Seeing
Eyes and Seeing
Lesson Plans
- 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
- 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
News
- -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
- -03-29-07 Damaged Gym Lights Can Damage Eyes (Yahoo.com)
"At issue are metal halide bulbs, which are about the size of a football and give out bright, white light. The bulbs became available in the 1960s, and millions are in use across the country."
"An outer glass envelope normally prevents the release of UV rays. But metal halide bulbs differ from ordinary household bulbs in that when the glass gets broken — say, by a basketball or a volleyball — the inner quartz tube keeps on burning."
"Exposure to a broken metal halide bulb can burn the corneas. A small number of cases have been reported across the country and around the world, in Florida and South Dakota, Canada and Australia. Exactly how often it happens is unclear, but some experts suspect many cases go unreported or are mistaken for other conditions, such as pinkeye." 03-07
Papers
- 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
- 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
- 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
- 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
- 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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and Dr. R. Jerry Adams-
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