Eugene, a city of the Pacific Northwest located in the U.S. state of Oregon, is to review the conversion of LED streetlights as American Medical Association’s official policy statement warned about the potential harm LEDs have on citizens’ well-being, reported the Register-Guard.

The AMA recommended that cities that have completed the installation of LED streetlights to dim or reduce the blue-light.

The blue-rich light, though looked white to the naked eye, can interfere one’s sleep cycle and can cause severe glare to road users, said the AMA.

The city finished the conversion of approximately 5,000 LED streetlights in several areas across the city. The switch costs around US $850,000. The city is expected to save US $120,000 on energy per year, along with US $35,000 for maintenance expenses. The upgraded LED streetlights delivers color temperature 4,000K light, which exceeds the AMA’s recommended limit of 3,000K.

Though some of the public feedback in other cities on these conversion projects back the use of LEDs in the 4,000K range, part of Eugene residents have complained about the LEDs of being too bright at night.

Brian Richardson, Eugene Public Works spokesman, considered the LED streetlights are still too novel for professionals to be able to make decisions about altering the streetlights. The city officials will evaluate the guidance statement and decide the ideal direction for the streetlights.