Blue Light Filters Disappoint in New Study

A new study suggests that blue light filters aren’t particularly useful in quelling the symptoms of digital eyestrain.

Researchers compared the effectiveness of blue-blocking filters and equiluminant neutral density filters, Healio reports. They published their study in the journal in Optometry and Vision Science.

They found no difference in the effectiveness of the two at reducing symptoms of digital eyestrain.

“These results do not support the use of blue-blocking filters for the treatment of digital eyestrain,” study co-author Mark Rosenfield was quoted saying.

Healio reports that blue-blocking filters “were not shown to reduce any apparent symptoms” of digital eyestrain.

Rosenfield acknowledged that there is “no physiological mechanism at the present time that links blue light with eyestrain.” But he said blue light may interfere with circadian rhythms and disrupt the ability to fall asleep.

Read more at Healio