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Cane: A_mobility_aid

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Cane: a tool for low vision rehabilitation

Publicado en: Salud y medicina
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Cane: A_mobility_aid

  1. 1. ` Prepared by Mohammad Riyaj Ali M Sc Optometry Cane : A Mobility Aid
  2. 2. Introduction • A white cane is a long rod like device used by blind or visually impaired travellers to give them information about the environment they are travelling through • Using a cane can – warn them of obstacles in their path – tell them of stairs they are coming to – warn them that they are coming up to a curb – tell them of many other things in the environment that they must deal with
  3. 3. • The basic technique for cane travel, the "touch technique," requires the cane user to move the tip of the cane in an arc across the front of his body, thus assuring a safe space for the next footstep
  4. 4. Importance of a Cane • It is accepted as a symbol of the visually impaired • It is regarded as the proven mobility aid • It is inexpensive, handy and has adjustable length • It plays a vital role in the education, social integration and comprehensive rehabilitation of the visually impaired
  5. 5. Importance of a Cane • The cane techniques are simple and universal and can be applied even in a relatively unknown environment • It enables them to seek a variety of jobs and expedites their economic rehabilitation • The white cane can be folded and put in a handbag while travelling in public transport or while at work • It gives a visually impaired a new lease of life, a new dimension of independence and enables him to become fully contributing members of society
  6. 6. Qualities of a Good Cane • Good conductivity • Durability • Light weight • Low cost • Strength and resilience • Cosmetic and elegant appearance • Easily availability • Easily repairable • Meeting the specific length requirements
  7. 7. Types of Cane 1. Symbol Cane • To say you have low but useful vision • You hold the symbol cane in front of you to let people around you know that you’re partially sighted. It’s particularly useful in busy places
  8. 8. 2. Guide Cane • To find obstacles before they find you • You hold a guide cane diagonally across your body and then use it to find obstacles in front of you such as kerbs or steps
  9. 9. 3. Long Cane • To avoid obstacles if you have restricted or no vision • Once you’ve been trained to use a long cane, you roll or tap it from side to side as you walk, to find your way and avoid obstacles
  10. 10. 4. Red and white banded cane • To show you have low hearing and vision
  11. 11. Left: One type of support cane ; provides physical stability Middle: One type of "probing" cane; probes for and locates obstacles in your path of travel Right: Using a support cane and a probing cane for outdoor travel
  12. 12. A Support Cane Should: • Be strong enough to support your weight. This usually means that a support cane is not lightweight • Be short enough to rest your hand on top while you hold it close to your body • Have a tip that grips the floor and does not slide A Probing Cane ("White Cane" or "Long Cane") Should • Be lightweight so that you can hold and move it in front of you without becoming tired. This usually means that a probing cane is not strong. • Be long enough to reach ahead and warn you about obstacles and stairs. • Have a tip that can slide easily along the ground
  13. 13. Using the Cane 1. Holding the Cane • The person can hold the cane in either hand • The thumb should be over the top of the cane, with the first finger extended on the side of the cane and the three remaining fingers wrapped around the under side of the cane • The first finger is extended along the side of the cane because in that way the cane acts as an extension of the finger
  14. 14. 2. Hand position • As the person holds the cane, his elbow should be slightly bent and near the body • The hand holding the cane should always be in line with the middle of the body. This helps him to walk straighter 3. Wrist movement • The cane is moved from side to side by using a movement of the wrist. The arm does not move
  15. 15. 4. Arc • The tip of the cane should touch the ground a litter wider than the width of the person’s body. • This way, the cane tip touches the ground where the person is going to step and protects him from falling into ditches or tripping over objects that are in his path • The tip of the cane should touch the ground lightly. This will keep the tip from getting stuck as the person walks forward
  16. 16. 5. Rhythm • As the cane moves to the right, the left foot steps forward. • As the tip moves to the left the right footsteps forward 6. Identification of objects: • The different objects that the cane locates will make different sounds, which the person with visual impairment will learn to identify 7. Shore line • Sometimes a person may want to use the cane to follow a grass line, a fence or a wall. This technique is called shore lining, or tailing, with a cane