ICU Eyewear?s Screen Vision is a powerful blue light filtering eyeglass with no magnification. This Square Blue model is featured in youth sizing to help long term eye issues developing from laptop, video and phone use. By using coated lensing to filter harmful blue light emitted by mobile and fixed screens, Screen Vision reduces digital eye strain. Artificial blue light filtration can help with more than just eye strain, Screen Vision helps guard against long term age-related eye conditions such as macular degeneration and cataracts. Artificial blue light is also a contributing factor to the suppression of melatonin release, a major factor in sleep disruption. Screen Vision featrues additional 100percent UVA/UVB protection.