A SIMPLE GUIDE FOR
LOW VISION PERSONS
Low vision means any vision that is adversely affecting a person's
everyday life. It cannot be corrected with additional surgery or regular
prescription lenses.
If your vision fits the above definition:
1) Check with your doctor to find out:
- if he has done all that he can do,
- if he can recommend a low vision clinic in your area, and
- what your visual acuities are.
2) Call Mons International at
1 - 800 - 541 - 7903
for additional services in your area.
3) The best place to find the adaptive aids needed is a low vision facility.
IF YOU CANNOT GO TO A LOW VISION FACILITY:
GUIDELINES FOR LOW VISION DEVICES
Low vision persons need 4 major adaptive aids:
- Direct lighting
- Glare reducing filters
- Occluders (if one eye is much better
than the other)
- Magnification
To make life a little easier, large print
and talking devices also help.
1) |
If your vision is 20/30 to 20/60 in your best eye with
best correction the following is recommended: |
a) |
Proper direct lighting. A 60 watt to 75 watt bulb is enough
but the light needs to be directly on the object being viewed.
|
b) |
A glare reducing and contrast enhancing filter for indoors
as well as outdoors.
|
c) |
An occluder for the worst eye when trying to see detail.
|
d) |
Magnification may not be needed with proper lighting,
filter and occluder. However, if reading is still a problem then
a low
powered magnifier (+3.0d - +8.0d) is indicated. |
2) |
For vision
of 20/70 - 20/120: |
- Same as a, b and c above:
- Magnification is needed in the 2x-5x
range.
- A video magnifier CCTV
(like the MagniSite or Merlin CCTV) would be recommended if reading
a fair amount.
3) |
If your vision
falls between 20/120 and 20/200 in your best eye with best correction
the following is recommended: |
a)
|
Proper direct lighting. No more than a 75w
bulb is needed but it needs to be directly on the object being
viewed. If reading with a magnifier the light needs to be between
the magnifier and the paper, not shining through the magnifier.
|
b)
|
A glare reducing and contrast enhancing filter for indoors
as well as outdoors.
|
c)
|
An occluder for the worst eye when trying to see detail.
|
d)
|
Magnification in the 5x-10x range.
|
e)
|
An electronic reading and writing CCTV would be the easiest
device with which to read. It will magnify up to 60x and contrast
and brightness can be varied.
|
4) |
With a visual
acuity of 20/200 or less the following is recommended: |
- Refer to a, b, c, and e above.
- magnification in the 5x-15x range.
- Depending on how difficult it is to read, consider using
talking books, talking clocks, computers, and tape recorders for
recording
phone numbers, and letters, as an alternative.
DISCLAIMER OF WARRANTIES AND LIABILITY
|
Mons International, Inc (“Mons”) makes no warranties beyond the description
of the particular low vision device as contained herein. Mons does not
warrant any such device as fit for a particular purpose for any individual
or for a specific low
vision need or task. All liability for product selection rests with you,
the consumer. Mons highly recommends that any selection be made only
after consultation with your certified therapist or eye care professional. |
