Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Dynamic Quantum Gate Based on Controllable Chiral Liquid Crystal Nanostructure.

Nano letters·2026
Same author

Coreactant-Filled Hydrogel at Ruthenium-Labeled Brain Tissue Section for Electrochemiluminescence Imaging in Gel.

Analytical chemistry·2026
Same author

Reconfigurable ferroelectric chiral nanostructures enable fast-switchable optical spatial differentiation.

Light, science & applications·2026
Same author

Tracking Dynamic Variations of Reactive Oxygen Species and Temperature during Ferroptosis-Induced Hepatic Stellate Cell Activation.

ACS nano·2026
Same author

Full-color 3D visualization with Janus metafiber.

Nature communications·2026
Same author

Multi-parameter enhanced optical encryption with biphasic chiral photonic crystals.

Light, science & applications·2026

Related Experiment Video

Updated: Jun 27, 2025

Eye Tracking During A Complex Aviation Task For Insights Into Information Processing
07:48

Eye Tracking During A Complex Aviation Task For Insights Into Information Processing

Published on: April 4, 2025

248

Frequency-encoded eye tracking smart contact lens for human-machine interaction.

Hengtian Zhu1, Huan Yang1, Siqi Xu2

  • 1National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China.

Nature Communications
|April 27, 2024
PubMed
Summary

Researchers developed a smart contact lens for seamless human-machine interaction. This biocompatible device enables precise eye tracking and wireless control, offering a natural and effortless user experience.

More Related Videos

Eye-Tracking Control to Assess Cognitive Functions in Patients with Amyotrophic Lateral Sclerosis
07:00

Eye-Tracking Control to Assess Cognitive Functions in Patients with Amyotrophic Lateral Sclerosis

Published on: October 13, 2016

8.2K
Efficiently Recording the Eye-Hand Coordination to Incoordination Spectrum
07:30

Efficiently Recording the Eye-Hand Coordination to Incoordination Spectrum

Published on: March 21, 2019

7.9K

Related Experiment Videos

Last Updated: Jun 27, 2025

Eye Tracking During A Complex Aviation Task For Insights Into Information Processing
07:48

Eye Tracking During A Complex Aviation Task For Insights Into Information Processing

Published on: April 4, 2025

248
Eye-Tracking Control to Assess Cognitive Functions in Patients with Amyotrophic Lateral Sclerosis
07:00

Eye-Tracking Control to Assess Cognitive Functions in Patients with Amyotrophic Lateral Sclerosis

Published on: October 13, 2016

8.2K
Efficiently Recording the Eye-Hand Coordination to Incoordination Spectrum
07:30

Efficiently Recording the Eye-Hand Coordination to Incoordination Spectrum

Published on: March 21, 2019

7.9K

Area of Science:

  • Biomedical Engineering
  • Human-Computer Interaction
  • Ophthalmology

Background:

  • Traditional eye tracking methods can be cumbersome and require specialized equipment.
  • Advancements in wearable technology offer potential for more integrated and natural interaction systems.

Purpose of the Study:

  • To develop a miniature, imperceptible, and biocompatible smart contact lens for in situ eye tracking.
  • To enable wireless eye-machine interaction using the smart contact lens.
  • To achieve high angular accuracy for precise eye movement detection.

Main Methods:

  • A chip-free, battery-free smart contact lens utilizing frequency encoding strategy.
  • Implementation of a time-sequential eye tracking algorithm.
  • Demonstration of various eye-machine interaction applications and in vivo biocompatibility tests.

Main Results:

  • The smart contact lens successfully detected eye movement and closure with high angular accuracy (<0.5°).
  • Multiple interactive applications including drawing, gaming, and device control were demonstrated.
  • Comprehensive biocompatibility tests showed low cytotoxicity and eye irritation.

Conclusions:

  • The proposed smart contact lens offers a novel, efficient, and natural approach to eye tracking.
  • This technology has the potential to significantly advance human-machine interaction.
  • The biocompatible design ensures safety for potential long-term use.