Doctor's Best Natural Vision Enhancerscontain Lutemax 2020, highly bioavailable naturally sourced carotenoids that help neutralize free radicals to support healthy visual function, macular health, and cognitive acuity. Constant exposure to ultra violet (Uv) and blue light emitted from computers and mobile devices may potentially damage the retina. Omega-3 Dha and Epa help support the retina's light-sensing activity.