This document discusses low vision devices and education materials for visually impaired children. It describes various optical devices like magnifiers and telescopes that help maximize remaining vision. It also discusses non-optical aids and electronic devices. The document provides details on selecting devices based on task and training needed to use them effectively. It outlines education materials for the totally blind, such as Braille, and for low vision, including magnifiers, stands and guides. Mobility training and assistive technology are also summarized.
I have made a PowerPoint presentation on ORIENTATION AND MOBILITY.
I have put a relevant and brief introduction about the meaning of the topic.
I have mentioned the tools, techniques and role of a teacher regarding O&M.
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This is a guide for Visual function assessment in low vision. Useful for Optometrists in providing better care to Low vision Patients by assessing the conditions better.
I have made a PowerPoint presentation on ORIENTATION AND MOBILITY.
I have put a relevant and brief introduction about the meaning of the topic.
I have mentioned the tools, techniques and role of a teacher regarding O&M.
THANKYOU
This is a guide for Visual function assessment in low vision. Useful for Optometrists in providing better care to Low vision Patients by assessing the conditions better.
It talks about visual impairment, definition, types, CATEGORIES OF VISUAL IMPAIRMENT, Identification of Visually Impaired Children, Causes of Visual Impairment, TEACHER’S APPROACHES TO ELIMINATE THE VISUAL DEFECTS, INSTRUMENTS FOR VISUALLY IMPAIRED, Prevention of Visual Impairment, Plus Curriculum
This Module will help the learners to understand the best about Low vision in General.This will also help and guide Educators to make up more things regarding Low Vision and its introduction.
A ppt which clears all your doubts related to blinds, their reading systems etc. A short introduction to Louis Braille and how to learn math to music to art to Capitalization and some fun exercises.
Magnification is a method of increasing the size of the image
so that enough of the retina is stimulated to send an impulse
through the optic nerve allowing an object to be perceived .
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Vision Training/ Vision Therapy (Active/ Passive Vision Therapy)/ Sports Vision/ Computer Vision Syndrome
Contents:
-Vision Training
Overview
Misconception
Tips for success
Office Vision Training
Home Vision Training
Conditions treated by vision training
Sports Vision Training
Computer Vision Syndrome
Controversy
Summary
Summary
• Vision training is active therapy as it requires conscious participation by the pt.
• The achievement of the final goal occurs slowly and progressively
• VT is not a substitute to lenses or surgical therapy, it is an additional treatment
• Variety of BSV related conditions can be treated with VT
• The underlying neuropsychophysiological mechanisms affected by VT are still
under intense investigation
• VT is the most controversial subject in eyecare profession
It talks about visual impairment, definition, types, CATEGORIES OF VISUAL IMPAIRMENT, Identification of Visually Impaired Children, Causes of Visual Impairment, TEACHER’S APPROACHES TO ELIMINATE THE VISUAL DEFECTS, INSTRUMENTS FOR VISUALLY IMPAIRED, Prevention of Visual Impairment, Plus Curriculum
This Module will help the learners to understand the best about Low vision in General.This will also help and guide Educators to make up more things regarding Low Vision and its introduction.
A ppt which clears all your doubts related to blinds, their reading systems etc. A short introduction to Louis Braille and how to learn math to music to art to Capitalization and some fun exercises.
Magnification is a method of increasing the size of the image
so that enough of the retina is stimulated to send an impulse
through the optic nerve allowing an object to be perceived .
DIRECT DOWNLOAD LINK ❤❤https://healthkura.com/vision-therapy/❤❤
Dear viewers Check Out my other piece of works at___ https://healthkura.com
Vision Training/ Vision Therapy (Active/ Passive Vision Therapy)/ Sports Vision/ Computer Vision Syndrome
Contents:
-Vision Training
Overview
Misconception
Tips for success
Office Vision Training
Home Vision Training
Conditions treated by vision training
Sports Vision Training
Computer Vision Syndrome
Controversy
Summary
Summary
• Vision training is active therapy as it requires conscious participation by the pt.
• The achievement of the final goal occurs slowly and progressively
• VT is not a substitute to lenses or surgical therapy, it is an additional treatment
• Variety of BSV related conditions can be treated with VT
• The underlying neuropsychophysiological mechanisms affected by VT are still
under intense investigation
• VT is the most controversial subject in eyecare profession
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2nd Annual Conference on Pediatric Cortical Visual ImpairmentDominick Maino
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Low vision devices optical and non optical devices training strategies. How to teach map reading for visually challenged. preparation of tactual materials. Ways of teaching science and social science
Done by Group : Diamond
School Name : Umm Hakeem Independent Secondary School for Girls.
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An Article on - "Voices of the Marginalised: the use of participatory action research to influence the post-2015 discussions" - Authors - Marion Steff, Nusrat Zerin, Jahangir Alam
2. Low vision devices:
Tools that help those with vision loss
maximize their remaining vision and these
devices are:
1. Optical
2. Non Optical
3. Electronic devices
3. Check that each person has been examined to see
if spectacles are needed to correct /improve vision
before recommending low vision devices.
Before selecting a low vision device consider:
• size of objects to be viewed
• possible viewing distance from the object
• length of time needed for activity
• Whether one / both hands are needed for
activity
4. Optical devices are –
1. Near: These are designed for magnifying close
objects & print.
• Spectacles
• Magnifiers – Hand held & Stand magnifiers,
illuminated magnifiers
2. Distance: These are for magnifying things in the
distance (from 3 metres to far away).
• Monocular
• Binocular
• Telescope
3. Electronic devices:
• CCTV or video magnifier
5. Optical devices are –
1. Near: These are designed for magnifying close objects & print.
• Spectacles
• Magnifiers – Hand held & Stand magnifiers, illuminated
magnifiers (Dome, Bar, Sheet magnifiers)
2. Distance: These are for magnifying things in the distance (from 3
metres to far away).
• Monocular
• Binocular
• Telescope
3. Electronic devices
6. Optical devices for near tasks
Magnifiers for near tasks can be used for:
• reading a book or a newspaper
• reading labels, signs or prices in shops
• using tools, for example measuring
• threading a needle
• identifying money
• inspecting objects such as plants or insects
For reading, the magnifier has to be moved along each line of
print, sometimes only showing a word or part of a word at a
time. More words will be seen if the eye is held close to the
magnifier. Reading is very slow at first. It is difficult to learn to
use the magnifier properly - a lot of practice is needed.
7. 1. Uses:
for reading any material
writing
looking at objects from close range
2. Advantages:
range of magnification
both hands free
readily available- e.g."cataract" glasses can be used as reading
glasses
once used efficiently, can be used for long periods
3. Disadvantages:
exact reading distance important
Short reading distance with high powered lenses
more fragile than magnifiers (scratching, breaking)
Bad lighting at close distance stress eye
Without reading stand to bring material close to eye is difficult
8. Hand Magnifiers
1. Uses:
# reading signs, labels, prices, books
# identifying money
# inspecting objects such as plants or insects
# handwriting
2. Advantages:
# easy to carry
# available from low to high power
# Less expensive
# can be used in any position or angle
# Illuminated magnifiers allows light
onto print or objects
3. Disadvantages:
# difficult to keep appropriate distance
# one hand occupied
# difficult to hold steady
9. Stand Magnifiers
A stand magnifier is a strong lens which is mounted in a plastic stand. A
stand magnifier is usually easier than a hand held magnifier for a child to
use.
1. Uses
• Reading from a book or newspaper
• Looking at a picture or diagram
2. Advantages
• Has a fixed distance for ease of movement
• Easy to use
• Available from low to high power magnification
• Allows light onto print if legs thin and tapered or clear
3. Disadvantages
• Keeps one hand occupied
• Not useful for activities like writing
• Poor posture (bending above lens)
• Causes fatigue
10. Optical devices for Distance task
Magnifiers for distance are like small telescopes. They improve the ability
to see distant objects or people.
Objects appear to be closer and it is hard to judge distances properly. It is
best not to use telescopes while walking around.
Telescopes
Telescopes can be used for looking at distant objects and activities such
as:
signs
finding and recognizing people/animals
Reading in school from blackboard
finding an entrance to a building
watching games.
11. 1. Uses
• Reading from a blackboard from a distance >2 /3m
• Looking at objects you cannot get close to, e.g. top of a tree, animals
2. Advantages
• Makes distant objects appear closer
• Can be used in a classroom for blackboard reading or outdoors
3. Disadvantages
Requires very good contrast
Takes time to:
Find text on blackboard and read
Write notes down, possibly using other low vision device
Expensive to make
Not easy to use, requires extensive training
12. Training to use optical devices
• Encouragement and training are needed for people to use low vision
devices well.
• The field of view or amount through magnifier or telescope is small. It
takes practice to be able to find objects and then follow them or scan
to find other objects.
• For distance tasks it is best to look in the general direction of an object
without the device and then point or place the device in that direction
to locate objects.
• It is easier to scan along horizontal objects such as roads or fences and
up and down vertical objects such as trees or walls.
• Do not just give out magnifying glasses, if there is no one to train the
person in its use. A person will often reject the device, because they
do not know how to see better with it.
Training in the use of all magnifying devices is vital
13. Non Optical devices:
• Reading stand
• Felt tipped pen, markers
• Sun glasses/filter glasses
• Caps/Sun visors
• Table lamps
14. Education materials
• Total blind:
- Braille and stylus
- Electronic Braille note taker
- Brailler/Braillewriters
- Braille Printers
- For math
(Taylor board, abacus, Geometry set)
15. For low vision:
- Typo scope/Reading guide
- Writing guide
- Reading stand
- Signature guide
- Portable type electronic
typoscope
16. For mobility
• White cane
• Sighted guide technique
• Independent movement technique
• Guide dog
17. Plus curriculum
• Orientation and mobility
• Sensory training (touch, smell, hear, taste)
• Assistive technology- Computer technology
(screen reader software, magnification
software, JAWS, dolphin, NVDIA etc.)