TIPS In case of any product quality problems,please do not hesitate to contact with us.We will try our best to service for you and help you solve them. GLASSES FEATURES Anti blue light lenses,effectively blocks harmful rays Oversized frame,in line with fashionable trendy High quality frame,lightweight and durable The same style is available in various colors Reinforced hinges,can be used for a long term Support changing its lenses in to prescription lenses Classic frame shape,suitable for different clothing collocation Fluent frame lines,looks more comfortable BLUE-LIGHT HAZARDS Photochemical damage from blue light exposure has been implicated in age-related macular degeneration (AMD), a leading cause of vision loss in people over 65. Biomedical researchers suspect that long-term exposure to short-wavelength blue light can create oxidative stress on retinal cell structures, resulting in the accumulation of lipofuscin, a lipid-containing waste product that has been attributed to AMD.