EPISODE · Jul 9, 2026 · 5 MIN
Melanin Protects Your Retina More Than You Think
from Natural Eye Care with Dr. Marc Grossman, Holistic Optometrist · host Dr. Marc R Grossman, OD, L.Ac.
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/
What this episode covers
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 g...
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Melanin Protects Your Retina More Than You Think
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