The document presents a smart lens system that aims to assist people with diabetes. The proposed smart lens can consistently measure glucose levels in the body through sensors embedded in the lens and a wireless antenna to communicate readings to a device. It works by using boronic crystals in the lens that react to glucose in tears and change the lens hue to indicate glucose concentration levels. The smart lens offers advantages like being reusable, painless, reliable, and providing mobile access to readings. It could also function as a novel drug delivery system by releasing drugs through thin membranes in response to signals. The technology was developed by Google and is expected to be commercially released in 2019 after ongoing human trials.

1. SMART LENS
Presented by:
K. Rani Samyuktha
Dept. of Pharmaceutical Analysis
NIPER-HYDERABAD
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2. EXISTING AND PROPOSED SYSTEMS
EXISTING SYSTEM
The traditional method
of using a lancing
device is disruptive and
painful and needs to be
done repeatedly
through out the day
PROPOSED SYSTEM
The project aims to
assist people with
diabetes by
consistently measuring
the glucose levels in
body
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3. SMART LENS
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4.  SENSORS:
Embedded between 2 soft layers of lens material & a
pinhole in the lens allows fluid to sweep into sensor and
measures glucose levels.
 WIRELESS ANTENNA:
Communicates information to the wireless device.
 Adding led lights to warn the wearer when glucose levels
crossed threshold.
 Readings available at a tap on your phone.
 App can be used by others, they can monitor your blood
glucose levels.
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5. HOW DOES IT WORK?
Lens consists of proprietary combinations of boronic crystals
and other chemicals
Boronic crystals react with glucose in tears
Molecular spacing between chains in array changes
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6. HOW DOES IT WORK?
Initiation of chemical reaction
Causes lens to shift their hues
Causes change in colour of lens
Working can be compared to pH Paper:
Ph paper - Hydrogen ion concentration
Smart lens – Glucose concentration
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7. Advantages
Reusable
Painless
Highly
reliable
Mobile
accessible
Patient
compliance
Novel drugs
delivery system
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8. Smart lens as novel drug
delivery system
Tiny chambers are carved into the hydrogel and drug is added
and covered with a thin gold electrode membrane
User can use voice commands to tell app to send drug-
releasing signal to the chip
Chip initiates a voltage
Membrane dissolves and releases the drug
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9.  Developed by Google partnered with,
pharma company Novartis eye care
division.
 Patented by Google in March 2015
 Human trials started in 2016
 Released around 2019
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10. CONCLUSIONS:
• Smart way to monitor and control diabetes.
• Rising novel drug delivery system.
REFERENCES :
1.www.googlescholar.com
2.Wikipedia
3.www.meddeviceonline.com
4.www.healthline.com
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