of visual dissability 1 1 Initial assessment Benchmarks Visual acuity Field of vision Contrast sensitivity Chromatic sensitivity 2 2 DV definition An eye is blinded when its visual acuity with correction is 110 or its field of vision is of 10 grades ID: 783202
Download The PPT/PDF document "Description and analysis" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Description and analysis of visual dissability
1
Slide21. Initial assessment
Benchmarks…
Visual acuity
Field
of vision
Contrast
sensitivityChromatic sensitivity
2
Slide32. DV definition
An eye is blinded when its visual acuity with correction is 1/10 or its field of vision is of 10 grades.
3
Slide43. Clasification
BLINDESS: lack of vision or only light perception. They learn using Braille sistem
. They don't use light in order to acquire knowledge, perception of light helps them orientating though.
DEEP VISUAL DISABILITY: difficulty to make wide visual task. Impossibilty of doing tasks that require detail vision.
HEAVY VISUAL DISABILITY:
possibility to make visual tasks with inaccuracy, requiring time adaptability, help and modifications.
MODERATE VISUAL DISABILITY:
possibility of doing visual task with support and proper lightning.
4
Slide54. Sporty classification depending on the
vision grade
B1.
From people who do not perceive the light with any eye to those who perceive the light but cannot recognize the shape of one hand at any distance or in any position.
B2. From people who are able to recognize the shape of a hand to the ones who have a visual acuity of 2/60 or a field of vision with an angle lower than 5 grades.
B3.
From people who have a visual acuity higher than 2/60 to 6/60 or a field of view between 5 and 20 grades.
5
Slide65. Methodology, how to talk to...?
RESPECT ACTITUDE:
Ask before
offering help.
Avoid overprotection
.
Do no
generalize the behaviour.
COMUNICATION:
Talk
in a normal
voice
,
slow
and
clear
.
Be
specific
and precise in the message.Contextualize.Avoid exclamations that can provoque anxiousness watch out, etc.
6
Slide75. Methodology, how to talk to...?
SOCIAL INTERACTION:
Talking to
the face.
Go
towards
the person.Use the person’s name
.
Introduce
yourself
.
Let
the
other
person
know when we are leavingShow her if there are any other people nearby7
Slide85. Methodology, how to talk to...?
SPACE:
Sonority, temperature, light, colour, references, surface
MATERIALS:
Size, texture, safe, colour, contrast, on hand and reachable.
8