Care Of The Eyes

Welcome to class, I hope you enjoyed the last class. Today we will be talking about the care of the eyes. Follow me closely and you will understand what we are about to talk about.

Every person has five sense organs. These are the eyes for seeing, nose for smelling, ear for hearing, skin for feeling and tongue for tasting. These sense organs are very important for a normal life. They also affect the appearance of individuals. These organs therefore require care.

Parts of the Eyes

  • Eyebrow: Prevent sweat from running down into the eyes.
  • Eye lashes: Prevents the eyes from dust and dirt.
  • Eye lids: Can close to protect the eye from foreign objects.
  • Eye balls: They are the organs of sight. Each is connected to the brain by the sensory nerves called optical nerve.
  • Cornea: A protective layer. It keeps dust and dirt from passing through into the pupil of the eye.
  • Iris: It is the coloured part of the eye. It surrounds the pupil. It can increase or decrease the size of the pupil.
  • Pupil: The hole in front of the eyeball through which light ray passes into the eyes.
  • Lens: A glass-like part of the eye. It focus the light ray into one spot of the retina thus forming the image.
  • Retina: A light sensitive spot where image is recorded.
  • Tear gland: Pour out tear over the front of the eye. The tears washes away any dust which enters the eye.
  • Aqueous humour: It keeps the eye ball. It enables the eye to maintain its shape.
  • Vitreous humour: It keeps the eye ball. It enables the eye to maintain its shape.

 

Care of the Eyes

  • Use good glass when reading or doing fine work.
  • Do not rub your eye when you have something in it.
  • Do not wash your eyes with disinfectant unless on doctors advice.
  • Do not borrow another bpersons face towel for wiping your eyes.
  • Do not look directly at electric light or the sun.
  • Do not fix your eyes to watching television, reading books,
  • Eat food rich in Vitamin A.
  • Do not sit too close to the television screen.

Lack of proper care of the eyes can lead to

  • A strain on the eyes.
  • Eyes infections
  • Poor sight
  • The need to wear glasses
  • In serious cases, major injuries to the eyes could result in blindness.

Common Eye Defects

  • Long-sightedness
  • Short sightedness
  • Night blindness

Quiz

  1. Lack of proper care of the eyes can result to………….
  2. State two eyes defect.
  3. Describe how to care for the eyes.

we have come to the end of the class. see you in the next class.

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