1. Description and analysis of visual dissability

2. 1. Initial assessment Benchmarks… Visual acuity Field of vision
Contrast sensitivity
Chromatic sensitivity

3. 2. DV definition
An eye is blinded when its visual acuity with correction is 1/10 or its field of vision is of 10 grades.

4. 3. 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.

5. 4. 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.

6. 5. 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.

7. 5. 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 leaving
Show her if there are any other people nearby

8. 5. Methodology, how to talk to...?
SPACE:
Sonority, temperature, light, colour, references, surface
MATERIALS:
Size, texture, safe, colour, contrast, on hand and reachable.