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6 Types Of Supplements For Healthy Eyes
Lutein/zeaxanthin
- Carotenes family
- High concentration in human eyes.
- Strong antioxidant effect.
- Able to reduce risk of AMD and cataract.
- AREDS2 showed 10mg lutein and 2 mg zeaxanthin able to reduce risk of advanced AMD.
- Able to filter blue light.
Beta-carotene
- Carotenes family. Similar to lutein and zeaxanthin.
- Strong antioxidant effect.
- AREDS showed the effect of beta-carotene to reduce risk of advanced AMD.
- However due to its pro-oxidant effect, able to increase the risk of lung cancer.
- Lutein/zeaxanthin cannot be consumed together with beta-carotene as it will reduce the absorption of either one.
Fish oil
Contain omega 3 LCPUFA
- EPA and DHA is more important.
- Able to prevent dysfunction of meibomian gland and maintain tear film stability, thus maintain eye moisture.
- Reduce post-op eye inflammation.
- Antioxidant, reduce risk of advanced AMD
Vitamin C
- Water soluble vitamin
- Play a role in the antioxidant reaction in the eyes, eg: as an antioxidant by itself and as a catalyst for other antioxidant enzyme.
- It is included in the AREDS formulation.
- Long term use able to reduce risk of cataract.
Vitamin E (d-alpha-tocopherol)
- As vitamin C, is an antioxidant.
- Lower concentration compared to Vitamin C in the eye
- Studies showed able to reduce the risk of advanced AMD and cataract by its antioxidant effect.
- Also being included in AREDS formulation
Zinc and Copper
- Both are trace element in human body
- Zinc is an important trace element for eyes
- Able to act as an catalyst for the other antioxidant enzyme and act as an antioxidant by itself.
- Copper required lower dose compared to zinc
- But similar to zinc, copper act as an antioxidant and catalyst for other antioxidant enzymes.
- Copper also added together with zinc as high dose of zinc may cause some adverse effect such as anaemia.
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