The Effects of mmW and THz Radiation on Dry Eyes: A Finite-Difference Time-Domain (FDTD) Computational Simulation Using XFdtd

Abstract

Overview

The importance of investigating the health effects of RF radiation on the cornea is paramount. This computational study uses XFdtd software to simulate the impact of millimeter wave (mmW) and terahertz (THz) radiation on corneal health under various conditions.

Findings

• A mathematical simulation assessed the absorption of mmW and THz waves considering variations in tear film thickness and hydration levels.
• Temperature increases in the cornea were tracked to understand heating effects from radiation, particularly under conditions leading to dry eye syndrome.
• The use of XFdtd demonstrated that changes in tear film properties critically influence corneal absorption of these high frequencies.

Conclusion

With the technological escalation to higher frequency spectrums like 5G and possibly 6G, this study identified notable effects of mmW and THz radiation on the cornea, especially in dry eyes. These findings underscore the need for further in vivo research to explore the definitive impacts and underlying mechanisms.