Q. Why Does Eye Nutrition Matter So Much?

Eye nutrition refers to the role specific vitamins, minerals, and antioxidants play in protecting the structures of the eye — the retina, lens, macula, and cornea — from oxidative damage, UV radiation, and age-related degeneration. Research consistently shows that diet significantly affects the risk of the leading causes of vision loss: macular degeneration, cataracts, diabetic retinopathy, and dry eye disease. For patients in Yeongdeungpo, Guro, Gasan, and Gwanak, where diets high in processed foods are increasingly common, understanding eye nutrition can make a real difference in long-term visual health.

❓ Frequently Asked Questions About Eye Nutrition

{ “@context”: “https://schema.org”, “@type”: “FAQPage”, “mainEntity”: [ { “@type”: “Question”, “name”: “Q. What is the best vitamin for eye health?”, “acceptedAnswer”: { “@type”: “Answer”, “text”: “Lutein (10mg/day) and zeaxanthin (2mg/day) are the most evidence-backed nutrients for eye health, particularly for protecting the macula. Vitamin C, Vitamin E, zinc, and omega-3 fatty acids also play important roles. The AREDS2 formula — used in major clinical trials — combines these key nutrients and has been shown to reduce progression of age-related macular degeneration by up to 25%.” } }, { “@type”: “Question”, “name”: “Q. Does lutein really help with macular degeneration?”, “acceptedAnswer”: { “@type”: “Answer”, “text”: “Yes. Lutein and zeaxanthin are the only carotenoids found in the macula and lens of the eye. They act as natural blue-light filters and antioxidants. The AREDS2 clinical trial found that supplementing with 10mg lutein and 2mg zeaxanthin significantly reduced the risk of advanced AMD in people at moderate-to-high risk. Regular intake through diet or supplements is recommended for anyone over 50.” } }, { “@type”: “Question”, “name”: “Q. Which foods are highest in lutein and zeaxanthin?”, “acceptedAnswer”: { “@type”: “Answer”, “text”: “Dark leafy greens are the richest sources: kale (12mg per 100g cooked), spinach (11mg), and collard greens. Egg yolks are an especially bioavailable source — the fat content helps absorption. Other good sources include corn, orange peppers, peas, and pumpkin. In Korea, dishes like sigeumchi-namul (seasoned spinach) and gyeran-jjim (steamed eggs) are excellent daily sources.” } }, { “@type”: “Question”, “name”: “Q. Can omega-3 fatty acids improve dry eyes?”, “acceptedAnswer”: { “@type”: “Answer”, “text”: “Omega-3 fatty acids — particularly EPA and DHA from fish oil — help reduce inflammation in the meibomian glands that produce the oily layer of the tear film. Several studies show that 1,000–2,000mg daily of combined EPA+DHA can reduce dry eye symptoms and improve tear break-up time. Mackerel (goodeok), salmon, and sardines (popular in Korean cuisine) are excellent dietary sources.” } }, { “@type”: “Question”, “name”: “Q. How much vitamin A do I need for good eyesight?”, “acceptedAnswer”: { “@type”: “Answer”, “text”: “Adults need about 700–900 mcg RAE (retinol activity equivalents) of vitamin A per day. Vitamin A is essential for producing rhodopsin, the pigment in rod cells that enables night vision. Severe deficiency can cause night blindness and, in extreme cases, xerophthalmia. In Korea, vitamin A deficiency is rare in adults eating a balanced diet, but it can occur with very restrictive eating patterns. Sweet potato, carrots, and liver are excellent sources.” } }, { “@type”: “Question”, “name”: “Q. Are eye vitamin supplements worth taking?”, “acceptedAnswer”: { “@type”: “Answer”, “text”: “For most healthy adults under 50 with no family history of macular degeneration, a balanced diet rich in colorful vegetables, oily fish, and eggs typically provides adequate eye nutrition. Supplements are strongly recommended for those with early-to-intermediate AMD, smokers (vitamin E caution), or those with poor dietary variety. Always consult a board-certified ophthalmologist before starting supplementation, as some vitamins interact with medications or are contraindicated in high doses.” } }, { “@type”: “Question”, “name”: “Q. Where can I get an eye nutrition check-up in Seoul?”, “acceptedAnswer”: { “@type”: “Answer”, “text”: “At Nunehim Eye Center in Guro, Seoul, Dr. Daniel Baik offers comprehensive eye examinations that assess retinal health, macular pigment, and risk factors for nutritional eye disease. The clinic serves patients from Guro, Yeongdeungpo, Gasan, Gwanak, and surrounding areas, with consultations available in both Korean and English. Visit nunehim.com to book an appointment.” } } ], “about”: { “@type”: “MedicalClinic”, “@id”: “https://nunehim.com/#clinic” }, “publisher”: { “@type”: “MedicalClinic”, “name”: “Nunehim Eye Center”, “url”: “https://nunehim.com” } }