Science-Based Nutrition Helps Promote Eye Health Dietary Supplement Doctor's Best Natural Vision Enhancers provides the premier molecular building blocks for healthy vision. Naturally sourced FloraGlo is the most clinically researched lutein the world. Together FloraGlo Lutein and Optisharp Zeaxanthin help protect against light damage and photodamage from blue light. Omega-3 DHA and EPA facilitate the retina's light-sensing activity. Numerous clinical studies support the importance of each of these nutrients for vision and eye health. Helps enhance retinal cell light-sensing capacity. Helps promote sharper vision in the low light conditions. Helps prevent absorption of damaging blue light. Potent free radical scavenger.