I am using the ocushield clipons and I find less eye fatigue and better rest. It is well documented blue light rays from electronic screens interfere with sleep, they can also contribute to retinal damage for those at who have or are at risk for macular degeration. The ocushield lenses can help with both these issues and why I am wearing them. If you have prescriptive glasses as I do, the clip on lens may distort your corrected vision a bit, but not enough to significantly effect the vision. You may want to go with their presciption glasses. The team is very responsive to contact and promptly replaced my first lens I lost. Highly appreciate their assistance.