Easy to use. Effective.

These are so easy to clip on your glasses. I use glasses for reading and doing close work, often at night. So having blue light blocking le ses that I can take on and off makes it so easy to use. I also bought a couple of pairs for my pare ts as Christmas presents. They love them. Interestingly we all feel the red tone of light is really relaxing and calming instantly.

Easy on, easy off, and no $$$ prescription glasses needed. Going to buy different shades for office wear. High quality product.

Clip-ons fit well onto my reading glasses. They really do have a positive effect.

Calming my eyes when reading late at night.

Clip ons are a good way to determine effectiveness. The NightFall lense is very effective and I use them before bed as they help me become tired and fall asleep easily.

These were a gift and the recipient is well pleased, thank you.

I love these!! As someone who wears glasses this is the affordable way to get blue blockers. these truly make me sleepy when I wear them which is great for my insomnia. Highly recommend

I am very happy with these. I use them for watching movies at night, PC work and reading.

Comfortable, easy to apply. Great product.

Great product and great service as well. The Nightfall Clip-on lenses are the deep red end of the spectrum. I also use the Evening clip-ons for less blue blocking. All Good!!