FREE-FORM LENSES
What are they?
Free-form lenses are a type of high-definition lenses
that are created using specialized computer-controlled manufacturing processes.
Free-form lenses are made to more closely match
the wearer's prescription, while also taking into
account variations in the person's eyes across the
surface of the lens and how the lenses are positioned
in front of the person's eyes. The result is a lens that
offers improved clarity and better low-light vision,
colour and contrast perception.
What are they?
On the market: Kodak Unique HD progressive lenses,
distributed by Centennial Optical, are created using
position-of-wear measurements to more highly
customize the lens to the individual patient’s
viewing needs.
UV light is a form of electromagnetic radiation that
cannot be seen by the human eye. UV rays are emitted by the sun as well as man-made sources, such as
light bulbs and tanning beds.
UV-BLOCKING LENSES
Prolonged exposure to UV rays can cause painful
injuries to the eye, according to Health Canada,
and can also create long-term problems, such as
loss of vision, cataracts and cancer of the eyelid.
On the market: Rodenstock’s ColorMatic IQ Sun 2
self-tinting lenses provide 100% UVA and UVB
protection.
12 Optical Prism | July 2016
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