Slide 1 - DISABILITY GUJARAT by linzhengnd

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									LOW VISION
     Prepared   Presented By

    Mr. BIPIN MEHTA
            &
     Ms. ALPA VYAS
    BLIND PEOPLE’S
ASSOCIATION AHMEDABAD
Incidence & Prevalence : -

 •People with Visually
 Impaired in world is
 around 17.5 Corer
 •4.5 Corer are Totally
 Blind
 •13.5 Corer are Low
 Vision
•20 to 25 % school going
children may have
problem in vision
•40% children admitting
in special school have
Low Vision
Definition of VI as per PWD & N P C B :-
Definition of Low Vision as per PWD : -
Definition of Low Vision as per WHO : -
Two Major Points in
Definition:-


 •Reduce Functional Vision &

 •Residual Vision
           TYPES OF VISUAL IMPAIRMENTS
Class   Vision after          WHO Def               Indian
        correction            Certified   Working   Definition

0       6/6 – 6/18            Normal       Normal     Normal

1       <6/18- 6/60              VI           LV         LV

2       <6/60- 3/60            Sever          LV       Blind
                                VI
3       <3/18- 1/60             Blind         LV       Blind

4       <1/60- P.L.             Blind         LV       Blind
        (Light Perception)      Blind         LV       Blind
5       No P.L.   (No Light     Blind        Total     Total
        Perception)                       Blindness Blindness
           TYPES OF VISUAL IMPAIRMENTS
Class         Better Eye         Damage Eye        % of
                                                Impairment

0       6/9 – 6/18               6/24 –6/36       20%

1       6/18 – 6/36               6/60 Nil        40%

2       6/40 – 4/60 OR Field    30/60 to Nil      75%
        of vision 10 to 20
3       3/60 – 1/60 OR Field       Finger        100%
        of vision 10              counting
4       Less than 1 Ft. OR         Finger        100%
        OR Field of vision 10    counting to
                                Less than1 Ft
One 6/6                            Finger         30%
Eye                              counting to
                                Less than1 Ft
Characteristic :-
Assessment :-
•Formal Assessment Done by Medical Person
 according to Norms
•Functional Assessment involves
     a. Visual Acuity
     b. Visual Field
     c. Colour Vision
     d. Contrast
     c. Light
     d. Functional Vision
          1. Fixation, 2.Tracking, 3.Scanning,
           4.Mobility,5.Discrimination,6.Matching,
           7.Identification
Steps to Increase Functions of
Vision of the Child:-


    1. To Know the Result of F. A
    2. Identify the Areas
    3. Set the Objectives
    4. Select Activities
    5. Training
    6. Evaluation
 Low Vision Devices for Children with
             Low Vision

Optical Devices       Non- Optical Devices
•Magnifiers
•Stand Magnifier
•Hand Magnifier
                      Typo scope
•Cut Way Stand
                      Large Print
 Magnifier
                      Dark Line – Broad line
•Pocket Magnifier     Book
•Hand set Magnifier   Dark Pen, Pencil, Sketch
•Stereo Eye Glass     Pen

 Magnifier            Writing Slate

•Spectacles
•Tele Scope

								
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