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