By Richie

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Taking Care of Your Vision and Hearing

• By Richie

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What You Will Learn About

• Taking Care of Your hearing
• Preventing Ear Damage
• Headphones
• Protecting you ears
• Taking Care of Your Vision
• UV Rays
• Light Rays
• Eye problems
• Straining
• Image on the Retina

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Taking Care of Hearing

• Never look directly at the sun
• Avoid touching eyes unless you just washed your
  hands
• Keep sharp objects away from eyes
• A mask should be worn during sports that require
  it

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Prevent Ear Damage

• Cover your ears when you are to close to
  something that is very noisy
• Pay attention to the decibel chart

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Headphones

• If others can hear your music from your
  headphones it is too loud

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Protect your ears

• A blow to the ear or a serious ear infection can
  also cause the ear drum to break
• This can cause hearing loss

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Taking Care of Vision

• Get earwax out of your ear or you will get a bad
  ear infection
• Try t prevent swimmers ear
• High decibel noises can make lose part of your
  hearing

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UV Rays

• UV rays can cause cataracts and clouding in the
  lenses
• Sunglasses protect your eyes from the Suns glare
  and UV rays.

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Light Rays

• Light Rays enter through the cornea, pupil and
  lens
• Light Rays are different from UV Rays are from
  the sun and light arent

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Eye Problems

• Astigmatism is when the lens or the cornea has
  the wrong shape
• Nearsightedness, farsightedness, and astigmatism
  can be corrected with the right lenses or contacts

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Straining

• You can strain your eyes if you dont have enough
  light, but it wont hurt your vision.

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Image on the Retina

• The lens focuses the light to make an image on
  the retina at the back of the eye
• When the retina receives an image it makes
  electrical signs that go through the nerve cells
  in the optic nerves to the brains

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Reference

• Your Health Textbook,1999, Harcourt Brace
  Publishers, pages 112-118