The Efficacy and Functions of Lutein
Disease description:
Recently, my eyes have often felt dry and fatigued, and my vision has occasionally become blurry. I've heard that lutein is beneficial for eye health. Lutein can filter blue light and provide antioxidant protection for the retina. I wonder if these claims are true—are they actually effective in protecting the eyes? What other benefits and functions does lutein have?
Doctor's answer (1)
Dr. Wang Shuai
Lutein is a naturally occurring carotenoid that is primarily concentrated in the macular region of the human retina, offering the following functions and benefits:
1. Eye protection: As the main pigment in the macular region of the human retina, lutein effectively filters blue light, reduces damage to the eyes, and helps prevent eye diseases such as macular degeneration and cataracts.
2. Prevention of macular degeneration: The macula is the area responsible for the sharpest vision. Lutein can increase macular pigment density and reduce the risk of age-related macular degeneration.
3. Improvement of vision: Lutein helps enhance visual clarity and contrast sensitivity, thereby contributing to improved vision.
4. Antioxidant properties: As a natural antioxidant, lutein removes free radicals and reduces oxidative stress-induced damage to the body, thus helping to prevent various diseases.
5. Immune system enhancement: Lutein reduces damage caused by reactive oxygen species to the cell membranes, proteins, and nucleic acids on the surface of immune cells, thereby improving immune function and enhancing the body's resistance.
6. Cognitive support: Lutein accumulates abundantly in the macular region of the brain and key areas involved in learning and memory, helping to maintain cognitive and language abilities in the elderly.
