NOW Foods – Macular Vision Blue Light Protection – 50 SoftgelsNOW Macular Vision features XanthoSight, an ingredient consisting of lutein, zeaxanthin, and meso-zeaxanthin in ratios that have been clinically tested and found to promote optimal eye health, visual performance, and cognitive function.Promotes Optimal Visual Sharpness & FocusWith Clinically Tested XanthoSightEnhances Visual PerformanceCarotenoids such as lutein, zeaxanthin, and meso-zeaxanthin, are concentrated in the macula, an area of the eye responsible for focus and color differentiation. In the macula, these pigments act as a filter for cell-damaging blue light. Meso-zeaxanthin is concentrated in the central region of the macula responsible for detailed central vision. Unlike lutein and zeaxanthin, meso-zeaxanthin is not obtained through the diet or available in most eye support products. To enhance bioavailability, XanthoSight has been formulated with fish oil. Natural color variation may occur in this product.