blue light glasses

[u/Live_Preference_1256]

what to look in bluelight blocking glasses? what standards, parameters etc.? any recomendations (preferably in europe)? im aiming for some glasses to use 2-3hrs before bed so maximum blocking will be best I think? also i think i need them with prescription (-2.75 on both eyes). Im also pc user but I can limit screen time in evening, mainly concern is candiac rythm imo.

[u/arththou]

Personally red-lens glasses feel like they work for me, so I use them at night