GOOGLE CONTACT LENS

THE EVERYDAY LIFE OF DIABETICS

THE TECHNOLOGY

• Wireless chip & miniature sensor
• Antenna as thin as a hair
• Capacitor & controller to send data
• Charged by radio frequency waves
• LED to warn user

REQUIRED CHARACTERISTICS OF CONTACTS

• Ideal refraction index
• High oxygen transmissibility
• Tear film wettability
• Resistance to lipid/protein deposition

THE BEST TRADE-OFF: SILICONE-HYDROGEL

• Hydrogel: 90% water, cross-linked polymers
• Silicone: flexible, high oxygen transmissibility

FUTURE CHALLENGES

• Glucose levels in tears vs. blood
• Safe & secure handling of data
• Physical obstacles

OTHER SOLUTIONS

• Other contact lenses
• Thumb cuff
• Saliva sensors

THE END