[ElementsActive] Blue light cut glasses for PC, lightweight, 99.5% cut. The advantage is that they can be worn over eyeglasses. This is the item I purchased, but the field of vision changes to such a dark color that I felt, "I don't need to go this far to cut blue light." I feel like it's unhealthy. I recommend not buying it. Because of the large size, there is no suitable case, so I will wrap it in bubble wrap for shipping. Thank you for viewing.