Non-Optical Devices Flashcards
A form of assistive technology that is used to increase, maintain or improve the functional capabilities of individuals with sight loss
Non-optical devices
7 categories of non-optical devices
Relative size or sometimes referred to as larger assistive devices
Glare, contrast and lighting control devices
Posture and comfort maintenance devices
Hand writing and written communication devices
Orientation and mobility techniques and devices
Sensory substitution devices
Medical management and life skill devices
Best example of relative size magnification
Large print materials
Recommended to prepare large print materials
Arial narrow
Double line spacing
18 font size
Arial 12 is called
Clear print
14 point size is called
Large prints
Advantage of relative size
Cosmesis
Disadvantages of relative size
Books are too heavy or bulky
Less availability
Patients with retinitis pigmentosa may use
Flashlight since higher illumination is required
Conditions like glaucoma and cataracts are recommended to use
Different tinted lenses to control glare
Patients with albinism may require to have
Proper seating arrangement against direct sun or use of curtain or blinds
Example of glare, contrast, and lighting control devices
Adjustable wall lamps
Adjustable table lamps
Adjustable clip lamps
Halogen lamps
Should be recommended to ease some of the discomfort
Adjustable reading stands
Constructed from a piece of black cardboard which has a slit cut into it
Writing guides
The black colour of the writing guide enhances?
Contrast over reading and writing materials
It helps the user to write legibly on the line and also helps in making reading easier
Bold line notebooks
Bold, contrast automatically increases and makes reading easier
Felt tip pen and 3B pencils
Devices for writing
Writing guides
Letter writing guides
Signature guides
Cheque writing guides
Envelop writing guides
Regular markers
Bold markers
Writing pen with light
Stencils
Frames & stylus (for writing braille)
Slate & figures (for mathemical braille)
Devices for reading
Reading material with enlarged & high contrast print
Typoscopes (reading guides)
Fixed reading stands
Adjustable reading stands
Illuminated reading stands
An enlarged & high contrast calculator
A talking calculator
A talking dictionary
Talking books
Tape recorders
A typoscope (reading guide)
Reading material in Braille
Flash cards
Tactile cards
Cards with enlarged & high contrast alphabets, numbers, shapes, pictures, paragraphs etc.
Using the remaining senses to establish one’s location in one’s environment
Orientation
Art of moving from one place to another independently
Mobility
Comes in folding and unfolding models
Mobility canes
Most useful device for patients with DM
Pre-set insulin syringe
Scientifically accepted device for currency identification
Notex
Has a tiny iron string which helps in threading a needle
Needle threader
Helpful for those who cant differentiate colors
Color identifier
Have raised buttons for numbers with a speech output option
Talking clock and watch
Devices for ADL (ACTIVITIES IN DAILY LIVING)
Large & high contrast telephone dials & push button phones
Large & high contrast wall clocks
Regular but high contrast wall clocks
Large & high contrast table clocks
A talking time piece
Large & high contrast wrist watches
Talking wristwatches
Devices for domestic activities
Cooking aids:
A high contrast stove, possibly white stove with black plates
Pans (saucepan, frying pan, griddle, wok etc) with high contrast handle & cover
A white enamelled cooking pan set with black handles
A red enamelled cooking pan set with black colour inside & white handles
A set of cooking spoons with handles of yellow colour & black border
A set of condiment jars labelled with names of each spice written in an enlarged & high contrast print
A set of large size white jars with bright & different coloured covers labelled with the names of cereals (rice, sugar, cereals etc) to be kept in them, written in an enlarged & high contrast print
Kitchen tools (knives, bottle opener, strainer, vegetable crusher, peelers, cutters, lemon-presser etc) with bright colours & high contrast handles
A vegetable cutting board of high contrast (with one side white & the other side black)
Devices for recreation
Large ludo
A large chess set
A large & high contrast set of playing cards
Large & colourful footballs
An enlarged & high contrast carom board with large & bright coloured goats
A TV with a large screen & bright colours
Devices for self-care activities
Magnifying mirror with extra illumination
Devices for healthcare
A digital thermometer
A talking body thermometer
Insulin units measuring device
Devices for orientation & mobility
White canes
Red & white canes
Rigid canes
A sighted guide, i.e. a person trained to guide a person with low vision
Devices for computer tasks
A computer with computer & internet access technology, talking appliances, enlarged & high contrast screens & enlarged or tactile keyboards
A zoom text (special low vision software)
In cases of severe visual loss, where optical devices do not provide adequate help, what devices are helpful?
Electronic devices
2 types of electronic devices
One displays the task in a magnified form from a television monitor;
the others are conversion systems that convert text into a speech system.
Examples of electronic device
talking watches
talking calculators
speech
Braille conversion systems
