Onke has only one mission, to give the color blind community the ability to see the true beauty of the world. At Onke we don?t just pride ourselves on being Color Blind Experts, but also in crafting glasses that allow our customers to both look and feel good! You see, when purchasing from Onke, you?re purchasing glasses with color correcting lenses of only the highest integrity and quality frames crafted to last a lifetime.?This is a functional eyewear, which is usually worn at the beginning. A small number of patients may feel a little accustomed and uncomfortable, because for any new product, there will be a process of wearing adaptation. We recommend wearing it for 1-2 hours a day and continuously for no less than a week. This will ensure better wearing experience and better results.?Our glasses use an advanced light-filtering technology that refines the light before it reaches the eyes. Then the glasses will turn the spectrum into an acceptable band. This allows the eyes to accept the color information which makes it possible to send the right signals to the brain.?Why Choose Our Color Blind Corrective Glasses?1. Designed for solving red/green colorblindness problems as well as color vision disorder and color weakness2. Suitable for both indoor and outdoor use3. Comes with modern and fashion design with frame4. A great gift for people who have color blind issues5.100% money back warranty for 30 days with prompt customer service.