Page 114 - The Indian Optician Digital Edition March-April 2024

THE COMPREHENSIVE

GUIDE TO

LENS COATINGS

FOR EVERYDAY EYEWEAR

- PART 2

he world of eyewear is evolving rapidly,
with advancements in technology offering
Ta myriad of options to enhance both vision
and protection. From combating lens fogging
to shielding the eyes from harmful UV rays, lens
coatings play a pivotal role in optimising the
performance and durability of eyeglasses. This
is the second part of the two-part series on the
four common lens coatings: Anti-Fog, Ultraviolet
(UV) Treatment, Scratch-Resistance, and Anti-
Reflective – exploring their functions, benefits,
and relevance to different lifestyles.
ANTI-FOG COATING OFFERS CLEAR
VISION IN CHANGING ENVIRONMENTS ̶ How Anti-Fog Coating Works

̶ The Challenge of Lens Fogging Anti-fog coatings can be applied to
various lens materials, including plastic,
Lens fogging is a prevalent issue, particularly polycarbonate, and high-index lenses. This
in environments with varying temperatures. coating is distributed evenly across the lens
The transition from cold to warm environments surface before cutting, ensuring consistent fog
causes moisture to condense on eyeglass lenses, prevention. For those seeking this technology,
obstructing vision and posing safety risks. inquiring about availability and pricing at
Whether for emergency responders, athletes, optical retailers is advisable.
or everyday individuals, combating fogging is
essential for maintaining clear vision and safety. ̶ Optifog Lenses are Another
Anti-Fog Option
̶ Understanding the Science of Fogging
Optifog lenses offer an innovative solution
Lens fogging occurs due to the formation of to fogging with a unique activation process.
tiny water droplets from condensation, creating By applying Optifog Activator and wiping it
a hazy layer on the lens surface. Anti-fog with a microfiber cloth, the anti-fog property
coatings like Optifog lenses address this issue by is evenly spread, providing up to a week of fog-
spreading water droplets uniformly across the free vision. These lenses are compatible with
lens, rendering them invisible and preserving various materials and can be combined with
clear vision. other coatings for comprehensive protection.

110 | THE INDIAN OPTICIAN | MAR-APR 2024 LENS UPDATE