Benefits of New Electronic Magnification Devices versus Conventional Magnifiers

Kevin Huff O.D.
ViewFinder
Low Vision Resource Center

www.viewfinderlowvision.com

1830 S. Alma School Rd. 10001 W. Bell Road
Mesa, Arizona 85210 Sun City, Arizona 85351

(888) 811-3161
www.enhancedvision.com

 My professional experience

 My personal experience

(888) 811-3161

 Low Vision Rehabilitation Definition

 Any chronic “uncorrectable” visual impairment that
limits daily functioning

 Better defined by the main goal

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 Independence

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 Use Vision More Efficiently

 Modify the size of the object (Magnification)

 Enhance Contrast (usually by improving lighting)

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 Conditions like Macular Degeneration affect the
central vision

 Conditions like Glaucoma and Retinitis
Pigmentosa affect the peripheral vision

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 Patients can be trained how to use parts of their
vision that still remain

 Eccentric Viewing Training

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 Visual Fields and Scotoma awareness:

 Humphrey 10-2: usually for Macular Problems

 Humphrey 30-2: usually for Glaucoma, Retinitis
Pigmentosa, Strokes

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 Patients with Macular Degeneration are great
candidates for magnification

 Magnification makes objects big enough to allow
patients to “get around” blind spots

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 If a patient’s blind spot is large enough to block
an object the patient will not see it

 If that same object is magnified so that it is larger
than the blind spot, the brain is able to fill in the
missing information as if blind spot isn’t there

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 Relative Size Magnification

 Relative Distance Magnification

 Angular Magnification

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 Relative Size Magnification

 Make the object larger

○ i.e. Large print items

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 Relative Distance Magnification

 Bring things closer

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 Magnification through optics

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 Contrast Sensitivity is lost in most diseases that
cause low vision, especially macular degeneration
 Contrast can be enhanced in two ways
 Lighting
 Physically changing the material to high contrast colors
such as black and white

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 Tools available
 Use eyes more efficiently
 Enhance Contrast
 Magnification

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 Magnification Types
 Relative Size
 Relative Distance

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 Conventional Spectacles/ Microscopic Glasses

 Hand Magnifiers

 Stand Magnifiers

 Telemicroscopes

 Electronic Devices
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 Use Relative Distance magnification

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 ADVANTAGES
 Hands-free

 Cosmetically acceptable

 Option patients ask for the most

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 DISADVANTAGES

 Fixed reading distance

 Short working distance

 Obstructs illumination

 Binocularity not possible above +10.00 DS
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 Use Angular Magnification primarily

 Illuminated magnifiers enhance contrast

 Can also be used with relative distance
magnification

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 ADVANTAGES
 Portable

 Inexpensive

 Greater working distance than glasses

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 DISADVANTAGES
 Reduced field of view

 Both hands occupied

 May be difficult to keep in focus

 Not great for long term tasks, especially over 4X

 Problems with hand tremor or arthritis

(888) 811-3161

 ADVANTAGES
 Fixed focal length

 Portable

 Better than hand magnifier over 4-5X

 Can be used with hand tremors

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 DISADVANTAGES
 Reduced field of view

 Reduced illumination

 Requires the use of accommodation, reading glasses or
a bifocal

 Each stand magnifier has specific requirements for add
power to maintain clarity & magnification

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 Use angular magnification

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 ADVANTAGES
 Mounted to keep hands free

 Longer working distance than glasses

 Binocularity up to 5X

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 DISADVANTAGES
 Critical depth of focus or working distance

 Smallest field of view for comparable magnification

 Decreases contrast

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 Use relative size magnification (or is it angular
magnification?)
 Can use relative distance magnification
 Enhance contrast
 Can be used with eccentric viewing

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 Advantages
 Large range of magnification (up to 75X)

 Increased Contrast

 Decreased Glare

 Increased Working Distance

 PC Compatible

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 Advantages
 Portable

 Capture images

 Distance vision

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 Disadvantages

 Cost: Many options available to help with this

 Portability: Not a problem anymore

 Hard to use: this is a myth

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 Types of Electronic Devices

 Desktop

 Portable

 New Type that I call the Acrobat Class

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 Desktop CCTV
 Combines large magnification range with large
field of view

 Enhances Contrast

 Tray allows for smooth reading even at higher
magnification levels

 Controls are very easy to use

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 Excellent option for near tasks

 Reading

 Writing

 Looking at photos

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 Simple, easy to use controls
 Long lasting LED lighting for truer picture and
color
 19”, 22” and 24” Monitors
 Magnification 2.4x to 85x varies with monitor size
 Screen easily pivots, both horizontally and
vertically to provide the most comfortable viewing
position
 You can personalize with 7 viewing modes
 3 year warranty
(888) 811-3161

 When the Acrobat LCD was introduced, it created
the standard for a new class of CCTV

 The portable desktop CCTV

 Ideal for patients who travel for extended periods of
time, i.e. winter visitors in Arizona

 No longer have to purchase two desktop CCTVs

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 Moving camera head allows patient to use this
device for multiple tasks

 Reading

 Writing

 Working with hands

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 Moving camera head allows patient to use this
device for multiple tasks

 See their own face, i.e. makeup, shaving etc.

 See others faces, i.e. grandchildren

 Distance vision

(888) 811-3161

 Auto focus 3-in-1 camera for seeing yourself up
close, reading and distance viewing
 Detachable camera for use at multiple work
stations
 19”, 22”, & 24” provide up to 82x adjustable
magnification (varies with LCD size)
 28 available viewing modes to optimize contrast
and brightness
 Line markers, object locator, remote control and
more…
 Two Year Warranty (888) 811-3161

 Similar Advantages to Acrobat LCD with a few
extras

 Even more portable

 Able to capture images

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 Excellent option for students or people who
attend presentations/ conferences often

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 Weighs less than three pounds
 2.4x to 30x magnification (based on17” screen)
 Camera rotates 330 degrees reading, distance &
self viewing modes
 Connects to laptop, desktop computer or monitor.
 28 custom color select modes
 Battery operated - up to 4 hours
 Built in LED lighting
 Auto install software/ plug & play
 2 year warranty
(888) 811-3161

 Large portable CCTV

 Extremely large field of view for portable CCTV

 Screen tilts up and down to allow for comfortable use

 Can be connected to TV Monitor for even larger field of
view

 Able to freeze images
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 Crisp, high-definition image
 Lightweight and portable
 3.5x to 14x magnification
 Large 6.5” anti-glare LCD screen tilts for most
comfortable viewing angle
 Large field of view allow the reader to see more of
the reading area
 Freeze frame with adjustable size and contrast
 6 viewing modes to optimize contrast and
brightness
 2 year warranty (888) 811-3161

 Lightweight Portable CCTV
 Ideal size for patient to carry with them

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 Can be used for reading and many near spotting
tasks
 Reading menus

 Shopping- seeing price tags and labels

 Seeing household items like stove dials and thermostats

 Signing documents such as checks and receipts

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 Adjustable magnification 2x to 10x
 Lightweight design
 3.5” or 4.3” high resolution LCD
 Large viewing area in a small package
 Adjustable brightness
 28 available viewing modes
 Foldable handle with comfort grip
 Freeze image feature with capability to magnify
and change mode.
 2 year warranty (888) 811-3161

To Schedule a
Free – No Obligation in Home Demonstration

Call: 888-811-3161

Email: marketing@enhancedvision.com


Benefits of New Electronic Magnification Devices versus Conventional Magnifiers

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Benefits of New Electronic Magnification Devices versus Conventional Magnifiers