Great glasses, help my focus I've been using these glasses for the past 2 years or so and they have been a tremendous help in keeping me focused and reducing blue light so I fall asleep easily. The customer support is great helping me in any way they can :) 10/10 would come again.

Very good product I highly recommend I… Very good product I highly recommend I no longer have a single problem thank you GMC performance

Good product awesome support My first glasses was stolen from package on transit send a picture to courier and gmg performance. Courier did not even bother to be interested but got answer from gmg and they sent new pair of glasses. (Answer from gmg took about 72h so do not panic if you are waiting mail from support) Btw these glasses are comfty and stylish

Biggest downside is lack of POC or female options The biggest downside if the unfortunate downside of almost any major glasses company, that if you aren’t a white man, these may not fit you. I want to love these glasses so badly, but the fact that the frame’s literally fall off my face every single day makes these hard to work with. I love the blue light blocking, but fight to keep them from breaking every day simply because all “off the shelf” glasses do not take into account POC or females

Great Product and Customer support I have been using my GMG Optimizer's for a year and a half now on a daily basis, they feel comfortble to wear for long hours without putting any strain on my eyes. I also had some minior issues, in which they provided me with quick and excellent customer support. I highly recommend for customers looking for affordable and effective blue light filter ining glasses.