contact lenses informative speech outline

 

 

  1. Introduction
    1. Definition of contact lens
  • Contact lenses are medical devices placed on eye surface for correcting vision, cosmetic and therapeutic purposes
  1. Types of contact lenses
    1. Hard Contact lens -made from acrylic films
    2. Rigid gas permeable lens – made of oxygen penetrable plastics
    3. Soft Contact Lens-has water absorbent plastics
  2. Functions of contact lenses

– lenses have different functions. These include;

    1. The corrective contact lens
  • It is manufactured to enhance vision’s clarity.
  • Purpose is to correct any refraction error that arise from eye’s refractive power and length mismatch
    1. Cosmetic lenses
  • These are designed to enhance the appearance of human eye. Some people call them ‘decorative lenses’
  • There are the theatrical lenses used in the entertainment and artistic industries.
  • For example making of eye to have appealing, appeasing, pleasing or strange appearance such as the case of a zombie in movies.
    1. Therapeutic Lenses
  • These are soft lenses used in the treatment of eye disorders of non-refractive nature. They are used to protect cornea from blinks of eyelids that maybe painful.
  • These lenses treat diseases such as keratopathy, corneal ulcers and keratitis.
  1. Choosing contact lenses
  • The choice requires advice from optometrist.
  • The specialist will advise on choice based on user needs after eye check-up.
  • The choice can be based on; work, duration of wear, daily wear, health and clarity of vision
  1. Taking care of contact lenses
  • The contact lenses have to be thoroughly cleaned and disinfected on daily basis.
  • The process of taking care of contact lenses include;
    1. Cleaning- use of cleansers to remove dirt, for about 2 minutes
    2. Rinsing- this helps in washing away the cleansers. Tap water or sterilised saline can used
  • Disinfection- to remove germs. Disinfection can be done using heat, hydrogen peroxide, or chemicals
  1. Conclusion

-Wrap of main ideas- general summary on;

  • Contact lenses,
  • Types, choice and;


 

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