Researchers have found that prolonged exposure to certain light can harm vision. A study involved testing the eyesight of 60 young adults using various light sources. The goal was to determine when participants could see two separate points of light.

The study's findings could have implications for the design of digital displays and lighting technologies. An expert in the field, who previously worked as an optometrist, led the research.

Further details about the study and its results are available, including information about the sources of harmful light and potential ways to protect eyesight.