using vision in the real world mary bairstow vision 2020 (uk) ltd 1
TRANSCRIPT
![Page 1: Using vision in the real world Mary Bairstow VISION 2020 (UK) Ltd 1](https://reader036.vdocuments.us/reader036/viewer/2022062408/56649de35503460f94ada4c4/html5/thumbnails/1.jpg)
Using vision in the real
world
Mary Bairstow VISION 2020 (UK) Ltd
1
![Page 2: Using vision in the real world Mary Bairstow VISION 2020 (UK) Ltd 1](https://reader036.vdocuments.us/reader036/viewer/2022062408/56649de35503460f94ada4c4/html5/thumbnails/2.jpg)
“Sometimes I've believed as many as six impossible things before breakfast."
Lets try three•Understanding how to maximise vision•Getting the best out of optical devices•Techniques that can help
![Page 3: Using vision in the real world Mary Bairstow VISION 2020 (UK) Ltd 1](https://reader036.vdocuments.us/reader036/viewer/2022062408/56649de35503460f94ada4c4/html5/thumbnails/3.jpg)
“That's the reason they're called lessons, because they lessen from day to day”
Nystagmus – null points and variability
Contrast – optimising use of light
Focus – which spectacles and when
![Page 4: Using vision in the real world Mary Bairstow VISION 2020 (UK) Ltd 1](https://reader036.vdocuments.us/reader036/viewer/2022062408/56649de35503460f94ada4c4/html5/thumbnails/4.jpg)
Alice
• Age 7• Cerebral palsy and nystagmus
• The lesson – Null point , reduced accommodation, possible field defect
• How Alice learns to lessen……….
![Page 5: Using vision in the real world Mary Bairstow VISION 2020 (UK) Ltd 1](https://reader036.vdocuments.us/reader036/viewer/2022062408/56649de35503460f94ada4c4/html5/thumbnails/5.jpg)
I wish I could shut up like a telescope! I think I could, if I only knew how to begin
• Access to the right equipment • Basic concepts – focus and magnification• Use and flexibility
• Examples• Pocket lupe – labels and shops• Hyperocular (high powered lenses with short focus) – reading• Telescope – science – observation at arms length
Images from Eschenbach and Visionenhancers
![Page 6: Using vision in the real world Mary Bairstow VISION 2020 (UK) Ltd 1](https://reader036.vdocuments.us/reader036/viewer/2022062408/56649de35503460f94ada4c4/html5/thumbnails/6.jpg)
Lewis
• Age 14• Congenital Cataracts • Using stand device, small pocket lupe
and binoculars• The lesson –No accommodation,
function v form • How Lewis learns to lessen………
Images from Associated Optical and Visionenhancers
![Page 7: Using vision in the real world Mary Bairstow VISION 2020 (UK) Ltd 1](https://reader036.vdocuments.us/reader036/viewer/2022062408/56649de35503460f94ada4c4/html5/thumbnails/7.jpg)
‘‘You may look in front of you, and on both sides, if you like,' said the Sheep’’• Basic use and repetitive skills • Eccentric viewing• Haemianopia training• Use of minification in localisation• Use of ‘ghost images 'with prisms• Telescope training – scanning / searching
![Page 8: Using vision in the real world Mary Bairstow VISION 2020 (UK) Ltd 1](https://reader036.vdocuments.us/reader036/viewer/2022062408/56649de35503460f94ada4c4/html5/thumbnails/8.jpg)
Carol
• Age 15
• Stargardt’s maculopathy
• Using I pad and mobile phone (oops) + specs, pocket lupe and telescope
• The lesson – eccentric viewing, telescope training
• How Carol learns to lessen …….
Images from Eschenbach
![Page 9: Using vision in the real world Mary Bairstow VISION 2020 (UK) Ltd 1](https://reader036.vdocuments.us/reader036/viewer/2022062408/56649de35503460f94ada4c4/html5/thumbnails/9.jpg)
“Begin at the beginning and go on till you come to the end: then stop”
Help a young person use their vision in the real world by lessening the lesson
•Understanding of how their vision works•Appreciating use of optical devices•Being adept in their use