Geometric color flashes in vision

I've had vitreous floaters for years, I've learned to live with them, but in the past several months I've also been having flashes of red/blue colored ..I'll call them 'pop ups'. because they pop up in my vision long enough for me to notice , then disappear.  the almost always occur periperally, but sometimes more in frontal vision.  I am on no medication.  I do not suffer from migraines, although I did years ago. I am in good health otherwise.  I am very nearsighted, I wear contacts or glasses.  These colored flashes occur while wearing either.  To descibe them, I'd say it looked like a red and blue geometric or weave like pattern, with irregular borders.  I see them in both eyes, but I don't think at the same time.  Any information you can offer would be greatly appreciated!