Effect of the head size on SAR for mobile telephones at 835 and 1900MHz
Authors not listed · 1996
Metal-framed glasses can nearly triple radiation absorption in eye tissues during phone calls.
Plain English Summary
Researchers used computer modeling to study how metal-framed glasses affect radiation absorption when using 1.5 GHz mobile phones. They found that wearing metal glasses can increase radiation absorption in the head by up to 20% and in the eye area by up to 175%. The metal frames act like antennas, concentrating the phone's electromagnetic energy.
Why This Matters
This 1996 study reveals a concerning interaction that millions of phone users experience daily without knowing it. The science demonstrates that metal-framed glasses essentially turn into antennas when you hold a phone near your head, dramatically concentrating radiation in sensitive eye tissues. What makes this particularly relevant today is that phone radiation levels have only increased since 1996, while metal-framed glasses remain popular.
The 175% increase in eye tissue absorption isn't trivial. Put simply, if you wear wire-rimmed glasses and use your phone against your ear, you're receiving nearly three times more radiation in your eye area than someone without glasses. The reality is that neither phone manufacturers nor eyeglass companies warn consumers about this interaction, leaving people to discover these risks through independent research decades after the technology became ubiquitous.
Exposure Information
Specific exposure levels were not quantified in this study.
Show BibTeX
@article{effect_of_the_head_size_on_sar_for_mobile_telephones_at_835_and_1900mhz_ce1109,
author = {Unknown},
title = {Effect of the head size on SAR for mobile telephones at 835 and 1900MHz},
year = {1996},
doi = {10.1541/ieejfms1990.118.11_1234},
}