Thickness and Refractive Index Calculation of Contact Lenses Over Time Using Terahertz Imaging and Optical Coherence Tomography

Research output: Chapter in Book/Conference paperConference paperpeer-review

Abstract

Contact lenses are widely used for correcting refractive errors and treating various ocular disorders. However, their thickness and refractive index can change over time due to dehydration and mechanical stress, which can impact their optical performance and safety. In this study, we introduce a new method to measure these parameters using a combined terahertz and optical coherence tomography system. An iterative algorithm that combines information from multiple locations within the sample can provide the depth information and refractive index measurements for both THz and OCT frequencies. We applied this method to contact lenses and measured their thickness and refractive index at different time intervals. The results revealed significant changes in these parameters over time, highlighting the importance of proper monitoring. Overall, this novel method provides accurate and reliable measurements of contact lens thickness and refractive index over time, providing essential insights into their behavior in vivo.

Original languageEnglish
Title of host publicationIRMMW-THz 2023 - 48th Conference on Infrared, Millimeter, and Terahertz Waves
PublisherIEEE, Institute of Electrical and Electronics Engineers
ISBN (Electronic)9798350336603
DOIs
Publication statusPublished - 2023
Event48th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2023 - Montreal, Canada
Duration: 17 Sept 202322 Sept 2023

Publication series

NameInternational Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
ISSN (Print)2162-2027
ISSN (Electronic)2162-2035

Conference

Conference48th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2023
Country/TerritoryCanada
CityMontreal
Period17/09/2322/09/23

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