| * Please note: "0"
= 15% absorption, "1" = 35% absorption,
"2" = 60% absorption, "3" = 85%
absorption
Edge Treatments
Edgecoatings were developed for people who require prescriptions
with moderate to significant edge thickness. Edgecoatings are the
answer to make the lens less noticeable, in the frames, and more
cosmetically appealing.
Custom Plus® from NACL is all about image. Not just
the image you see; but, the one they see. A skilled artist, who
hand paints the edge of the lenses to precisely duplicate the color
of the frame. If image is important to you, then try Custom
Plus® edge treatments by NACL. Frame needs to be enclosed
for processing.
Standard Edgecoat matches one color from the frame to the lens
edge, in opaque or transparent styles.
COLOR COATINGS
WHAT DO THE COLORS REALLY MEAN?
Pink / Rose
Most commonly prescribed color of all the tints. Used for general
cosmetic enhancement.
Yellow - (Shooter Lens)
Commonly used in low light environments to enhance contrast and
aquity. Yellow attacks the shortest wavelength of the color spectrum
(blue) to reduce "optical noise" caused by haze, mist,
and smog.
Green
Produces a transmission curve of light closest to that of the human
eye. It is steadily gaining popularity in the U.S. sunglass market.
Brown / Vuarnet® Style
A very popular base color for sunglasses. Color assists overall
improvement contrast and acuity by managing the blue light
spectrum.
Grey
Most popular base color for sunglasses. Color provides even light
transmission through the complete visible color spectrum. Grey allows
for perception of surroundings to be viewed in their natural shades.
CRT® Lenses
Computer screens can be unkind to the eyes. As computers have become
part of everyday lifestyles, we all have experienced computer "screen-itis"
- the red and itchy eyes, blurred vision and dizziness all associated
with prolonged computer use. A major university study confirmed
that 94% of people working with computers experienced vision symptoms.
CRT coatings from NACL combine UV blocking treatments with a high
quality anti-reflective coating and special color tint. The result
is a product that vigorously combats VDT glare and reflection, while
magically improving contrast between characters on the screen for
easy, comfortable viewing. Available in three colors and only on
plastic lens materials.
Grey - for use with multi-color screens and black and white screens
Violet - for use with green screens
Blue - for use with amber screens
Lumasport - (shooting lens)
This lens was designed for sporting activities that demand high
contrast including golf, tennis, hunting, marksmen, etc. Excellent
for low light conditions (dusk or dawn). Yellow 2 tint with the
Opticlear Plus® anti-reflective coating.
Therapeutic Lens Series (T.L.S.)
Individuals who are ultra-sensitive to light will benefit from
this lens. It eliminates 100% of the harmful ultraviolet light,
100% of the harsh blue light and 95% of the near infrared light.
The TLS lens series is specifically designed to work in the 380nm
to the 500 nm range commonly called the blue light spectrum. Filtration
for blue light is necessary because it has the shortest wavelength
and is easily scattered or diffused. Scattered blue light reduces
one’s contrast sensitivity or washes out what is being viewed
at the time. This is most common in people with certain retinal
conditions or diseases such as: Retinitas pigmentosa, Diabetic retinopothy,
Macular degeneration, Anfidia, and Glaucoma.
TLS 475 - "preventative" protection for people who spend
time in the sun. May also be worn indoors. 40% absorption.
TLS 511 - Moderate protection for people with developing ocular
symptoms. 50% absorption.
TLS 525 - Moderate to strong protection for senior citizens and
sports enthusiasts. 60% absorption.
TLS 550 - Maximum protection for all people with advanced ocular
symptoms. 70% absorption.
(All TLS tints are a solid brown/orange color and include a solid
flash gold mirror.)
Blue Eliminator I & II
This lens is best known as the "blue blocker" style
tint. These lenses have the same characteristics as the Therapeutic
Lens Series.
Blue Eliminator I - Gradient tint - Dark brown at the top fading
to orange at bottom.
Blue Eliminator II - Same as Blue Eliminator I with the addition
of a Flash gold mirror.
Ultra Violet Filters (UV)
Plastic Lens - (clear in color) UV filter is absorbed into the
lens using conventional tinting techniques. Lenses achieve 100%
UV protection after treatment.
Glass Lens - (30% yellow in color) UV filter is applied as a coating
to concave side of the lens.
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