Melanin Protects Your Retina More Than You Think Artwork

Natural Eye Care with Dr. Marc Grossman, Holistic Optometrist

Leading Holistic Optometrist Dr. Marc R. Grossman, O.D., L.Ac. hosts the Natural Eye Care Podcast: approaches to vision problems, eye health, and overall health backed by research and his 40+ years of experience with patients. Most eye diseases strike seniors. Find out how lifestyle, diet, and nutrition can help maintain healthy vision and even improve eyesight. An Holistic Eye Doctor is dedicated to helping people with such conditions ranging from myopia and dry eyes to potentially vision-threatening diseases like macular degeneration and glaucoma. Dr. Grossman's podcasts cover a multi-disciplinary approach including nutrition, eye exercises, lifestyle changes, and Chinese Medicine. Dr. Grossman founded the Rye Learning Center in 1980, a multidisciplinary center for learning problems, in 1996 co-founded Integral Health Associates in New Paltz, New York, and in 1999 co-founded Natural Eye Care, Inc. His background includes degrees in Optometry, Biology, Physical Education and Learning Disabilities, coupled with yoga, bioenergetics, nutrition, Chinese medicine and acupuncture, the Alexander technique and Feldenkrais. He is co-author of half a dozen books on vision, including "Natural Eye Care: Your Guide to Health Vision and Healing" in 2019. Dr. Grossman takes an integrated approach to vision and its influence on the body, mind, and spirit. His lectures and private consultations are in high demand.

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Natural Eye Care with Dr. Marc Grossman, Holistic Optometrist

Melanin Protects Your Retina More Than You Think

July 09, 2026 • Dr. Marc R Grossman, OD, L.Ac. • Season 7 • Episode 7

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Your eye color can change your day-to-day comfort in sunlight and it can hint at different long-term risks, but the real story is melanin. I’m Dr. Mark Grossman, an integrative medical optometrist and licensed acupuncturist, and I walk through what melanin is, how it functions as a natural pigment inside the eye, and why it acts like an internal shield against harmful light.

We connect the science of eye pigment to practical outcomes: why darker eyes often block more UV and reduce internal glare, why lighter eyes can experience more light scatter and photophobia, and what that can mean for macular degeneration risk. We also discuss a noteworthy tradeoff mentioned by the American Academy of Ophthalmology about dark eyes and a slightly higher cataract risk, plus the higher risk of ocular uveal melanoma (a rare eye cancer) associated with lighter irises.

From there, we get concrete about natural eye care and prevention. I explain melanin’s protective roles like absorbing UVA and UVB radiation, helping stabilize free radicals, and filtering glare across the retina. Then we shift into what you can control today: wearing 100% UV-blocking sunglasses, using a wide-brimmed hat outdoors, and even looking into melanin-based sunglasses, which block 100% of UVA/UVB rays and filter High-Energy Visible (HEV) blue light. Finally, we review nutrients and herbs that may influence our ability to build melanin, including green tea, turmeric, ginseng, lotus flour, fenugreek, and saffron, with a clear-eyed look at what’s promising versus what’s not yet proven.

If you care about eye health, UV protection, and simple habits that support healthy vision, subscribe, share this with a friend, and leave a review. And, visit us at https://naturaleyecare.com/

Welcome And Natural Eye Care

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This is the Natural Eye Care Podcast, hosted by leading holistic optometrist Dr. Mark R. Grossman. Senior citizens are at the highest risk of developing macular degeneration, glaucoma, cataracts, dry eye, and more. The Natural Eye Care Podcast provides complementary and natural approaches to vision problems, eye health, and overall health. Find out how lifestyle, diet, and nutrition can help maintain healthy vision and even improve eyesight. Dr. Grossman has degrees in optometry, biology, physical education, and learning disabilities. He is a New York State licensed acupuncturist. With 40 years of experience, he has co-authored the book Natural Eye Care: Your Guide to Healthy

Dr. Grossman’s Integrative Background

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Vision and Healing.

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Dr.

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Grossman. I'm Dr. Mark Grossman, integrative medical optometrist, acupuncturist, in practice for over 45 years, and author of five books on natural eye

Melanin Explained In Plain Terms

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care. And today we're going to do a podcast on melanin. What is melanin? Melanin is a natural pigment in your eyes that acts as an internal shield. Its amount and type dictate what your eye color is, and it protects the eye tissues from sun damage and harmful light rays. The concentration and distribution of melanin directly influence how your eyes function in different

Eye Color Pros And Cons

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environments. What are the pros and cons of eye pigmentations? High melanin, brown or dark eyes, naturally blocks more UV light and reduces internal glare. In fact, the American Academy of Ophthalmology notes that dark eyes carry a slightly higher risk of cataracts, possibly due to heat absorption. Very interesting. Low melanin, blue, green, or gray eyes, lighter irises, allow more light to scatter within the eye, leading to greater light sensitivity, otherwise known as photophobia, and a higher risk of macular degeneration. They also carry a higher risk of ocular uvial melanoma, which is a very rare eye cancer.

How Melanin Protects The Retina

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What is the protective role of melanin? Absorbs radiation. Melanin safely absorbs UVA, UVB radiation before it can cause cellular damage in the retina. It acts as a free radical stabilizer because it has antioxidant properties. It filters the glare. It prevents excess light from scattering across the retina, providing better visual comfort in bright conditions.

UV Habits For Daily Protection

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Regardless of your eye's melanin levels, which you don't have much control over, ophthalmologists and optometrists recommend that everyone wear 100% UV blocking sunglasses and a wide-brimmed hat, probably about three inches brim, outdoors. Because lighter eyes are more vulnerable to glare and UV damage.

Melanin-Based Sunglasses

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In fact, there are specific melanin glasses. You can actually look them up. So there's sunglasses made of melanin.

Herbs And Foods Linked To Melanin

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What are ways that we maybe can naturally increase our melanin? Some herbs like green tea, turmeric, ginseng, may help increase melanin production by stimulating key enzymes. While research shows these herbs can influence melanogenesis, it is not yet proven if they can reliably boost melanin levels in people. But the good anyway, so I put them into my diet regularly. Green tea, how does it increase melanin? Rich in antioxidants like polyphenols, which can protect melanocytes from damage and may stimulate melanin production. Turmeric, an anti-inflammatory, that may help enhance melanin production and also help skin tone. Ginseng, particularly Korean red ginseng, can activate melanin production. Lotus flour has been shown in some studies to stimulate melanin synthesis. Phenogreek, thought to increase melanin production. Saffron may enhance melanin production and increase skin pigmentation. Again, all those herbs are good for macular degeneration, good for your health in general, and try to incorporate them into your

Links, Questions, And Subscribe

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diet. So visit us at naturaley care dot com to get the latest information to keep your precious gift of sight.

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For more information, visit naturalecare.com and doctorgrossman 2020.com. Our email address is info at naturaleyecare.com. If you have any questions, call us 845-475-4158. And if you don't already subscribe to this podcast, please subscribe and review us.