Does junk food lead to poor eye health?

According to a new study published in the British Journal of Ophthalmology, eating an unhealthy diet full of processed meat, fried foods, and high-sugar items over a long period of time can lead to eventual vision loss.

Aim to fill your plate with fruit, dairy, poultry, fish, and vegetables—instead of processed and fried foods—research suggests.

Thanks to new research, “watch what you eat” may take on a whole new meaning. A study published in the British Journal of Ophthalmology suggests that eating a “Western pattern diet”—which includes processed meat, fried foods, and high-sugar items—may present significant risks for developing age-related macular degeneration (AMD), a leading cause of irreversible vision loss among older individuals worldwide.

Researchers looked at data from Atherosclerosis Risk in Communities—a population-based epidemiological study with nearly 16,000 participants reporting on lifestyle habits and medical histories from 1987 to 2017—and compared food questionnaires to retinal photographs taken at two different points in that 30-year timeframe.

Their findings? Those who ate a Western pattern diet had a threefold higher incidence of late AMD compared to those whose diets leaned more heavily on fruit, dairy, poultry, fish, and vegetables—particularly dark leafy greens and carotene-rich options.

It’s possible that early AMD risk is influenced more by genetics than diet, and that diet can influence the direction the disease goes, and whether it advances or not.

Although eggs are part of a Western pattern diet, that’s one food that needs more research to determine its effects on vision. Eggs are a good source of lutein, she said, which has been shown to be a beneficial nutrient for the eyes.

But bologna and potato chips? There’s no debate there.

Foods that are part of the Western diet are less nutrient dense, meaning they provide less of the beneficial nutrients needed for the eyes per calorie contents than such food as fruits and vegetables.

These foods also tend to increase weight and systemic inflammation—two more risk factors for AMD.

This type of condition most affects central vision, which is what you need to see straight in front of you as compared to peripheral vision. The effects of AMD might include blurry vision, dark areas in your field of view, and changes in color perception, all of which could be dangerous for your everyday life, but especially while running.

Currently, there’s no cure for AMD, although there are treatments like medications and laser therapy designed to slow down the degeneration process.

Even if AMD isn’t part of your genetic makeup, taking steps now to make your plate healthier could have big effects on your vision and overall health as you get older.

Most people understand that diet influences cardiovascular disease risk, and risk for obesity, but I’m not sure how much the average person thinks about diet as connected to vision loss. But what you eat to maintain good health is also related to what you eat to maintain good vision.

-text extracted from Runner’s World

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