Review on TVZ Metal Frame Blue Light Blocking Reading Glasses - Reduce Digital Eyestrain and UV with Spring Hinge Readers & Tint by Whitney Buckley

They tend to be less secure, and once attached, simple hinges are the same or more convenient. These lenses have a yellow tint - probably "blue blocking". The first landing was very easy and comfortable. However, there were problems with the lens. First, the focal range is very narrow, and even at that range, the text was just fuzzy. I think it's yellow. Holding the lens away from my face allowed me to focus better, but the image was convex (the center is closer than the edge). Compared to my Universal Dollar General Foster Grants (no longer worn :( ) which were much more linear. Serviceability/durability is important to me. I tend to be hard on glasses and buy a specific brand/model for parts when they break The most important factor is how the screws are attached (top is best), how well the screwdriver hooks them in and if they are adjustable.I returned them in resale condition, couldn't test them.I gave these 3 stars because of of the frame and fit Many people are happy with the look so stay neutral otherwise I would give 1-2 stars because they don't work for me.