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seniors for reading books. Reading magnifiers for seniors. Large magnifying glass for seniors. Best lighted magnifying glass for seniors for reading small print.
Book
magnifiers for seniors. Reading magnifying glass with light for seniors for
reading small print.
For best magnifying glass
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Magnifier Information After the age of about forty you will experience a problem viewing small print and tasks involving
close detail work. This eye condition is called presbyopia and magnification is the answer. What type magnifier is best? Hand held magnifiers are best for short duration use and a magnifying
lamp or hands free magnifier with stand are best for long duration use. Magnifier glass power
and work distance: Select magnifiers with a power that will allow you to perform your task
at a comfortable distance. The higher the power of the magnifier the shorter the focal range(work distance) and
the smaller the field of view. The high power magnifier may not be the best magnifier for you. Our large magnifier selection can help those with presbyopia and macular degeneration. . Field Of View: The size of the area being magnified when viewing through
a magnifying lens. The higher the power of the magnifier the smaller the field of view. Diopter: Diopter is a measurement that is used to calculate
the power of a magnifying lens. The higher diopter will provide higher magnification. Diopter is expressed as
"D" Power: Power is how large an object or print increases as
you look through a lens. Magnifying power is expressed as "X" Focal Length: Measurement
from the center of the lens to to the object and be in focus. Focal Range: The
distance from the magnifying lens to the object being viewed. Fresnel Magnifier: A flat magnifier consisting of concentric circles
that can be a full page reading magnifier.
Visual impairment (or vision impairment) is a decreased
ability to see to a degree that causes problems not fixable by usual means, such as glasses or medication. Our low vision
magnifiers can be of help. Rules Of Magnification. - The higher the power of the lens, the closer you must get to the object being viewed and the
smaller the field of view.
- As the power of a lens increases the diameter of the lens decreases.
- Diopter is a term used to determine the power(magnification}of
a lens. The terms are sometimes confused.
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Lighted 4 Plates $9.95
