Page 24 - The Indian Optician Digital Edition July-August 2024
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SMART CONTACT signal reliability despite eye movement, moisture, and wear.
LENS MEASURES Lab tests on three pig eye specimens demonstrated the lenses’
EYE PRESSURE efficacy in monitoring pressure across a wide temperature range
(50 to 122 °F). Using both circuits reduced the pressure reading
IN ALL deviation from true values to just 7%, effectively eliminating
TEMPERATURES temperature-related errors.
This dual-circuit “smart” lens design holds promise for
the accurate early detection and monitoring of glaucoma, even
in varying temperatures. Such advancements could lead to
more reliable and less invasive glaucoma monitoring for
According to a study patients worldwide.
published in ACS Applied
Materials & Interfaces,
researchers have developed a BAUSCH + LOMB INTRODUCES
groundbreaking “smart” contact
lens that accurately measures INFUSE FOR ASTIGMATISM CLS
eye pressure regardless of
temperature. This innovation Bausch + Lomb recently introduced INFUSE for Astigmatism
could revolutionise glaucoma daily disposable contact lenses in the USA. As per a press note,
detection and monitoring. these silicone hydrogel daily disposable lenses contain a blend of
osmoprotectants, electrolytes, and moisturisers to provide stable
As per the Centres for Disease
Control and Prevention, around 3 vision and keep eyes comfortable for 16 hours. The lenses are made
million Americans are affected by of Kalifilcon A, a material that provides 55% moisture coupled with a
glaucoma. Traditional methods high breathability of 107 Dk/t with a low modulus for added comfort.
like “air puff tests” offer one-time “More than half of toric lens wearers with astigmatism
eye pressure measurements, experience contact lens dryness and many also report blurred
often inadequate for detecting vision. These symptoms are only exacerbated with modern-day
subtle changes from fluid lifestyles, which include prolonged digital device use,” said Yang
buildup around the cornea. Yang, president of Global Vision Care at Bausch + Lomb, via the
The researchers aim to release. “Our INFUSE for Astigmatism lenses, which were developed
enhance minute fluctuation in-house by our research and development team, are designed to
detection in eye pressure directly address these challenges, including the causes of toric lens
measurement. Dengbao Xiao’s rotation. They provide excellent clarity, optimal stability and can be
team addressed accuracy issues worn comfortably all day.”
caused by temperature changes Furthermore, the lenses are designed with ProBalance
with a contact lens capable of technology and OpticAlign – this allows for clear vision across the
wirelessly transmitting real-time entire power range while helping to reduce spherical aberration,
eye pressure data across diverse halos and glare. An added advantage is the thin edge design of the
temperature ranges. lens to minimise lid interaction. The OpticAlign design stabilises the
lower hemisphere of the eye.
Xiao’s team created miniature
spiral circuits with unique “As patient lifestyles become increasingly more dynamic, it’s
vibration patterns, sensitive to essential their lenses provide a high level of moisture retention
slight eye pressure changes. and stability, particularly for those with astigmatism. INFUSE
Embedded in a common for Astigmatism will deliver on these needs and provide
contact lens material, these comprehensive in-office parameters that make it possible to
circuits’ vibrations were wirelessly fit patients during their scheduled appointment,” said Mark
detected by a computer- Schaeffer, OD, FAAO, and clinical excellence captain at MyEyeDr
connected coil. Tests confirmed inBirmingham, Alabama, in the release.
20 | THE INDIAN OPTICIAN | JULY-AUGUST 2024 CONTACT LENS NEWS
