White bread and pasta: The body digests these carbohydrates rapidly, causing blood sugar spikes. High blood sugar, especially in individuals with diabetes, can significantly affect vision and lead to eye issues like diabetic retinopathy, cataracts, and glaucoma. Substituting whole grains like oats and brown rice for white bread and pasta is a healthier alternative.

Processed meats: Sausages, bacon, and cold cuts are high in sodium. Excessive sodium intake can lead to high blood pressure, increasing the risk of hypertensive retinopathy, a condition that damages blood vessels in the eyes, causing blurred vision or vision loss. It's recommended to limit sodium intake to 2,300 mg or less per day.

Fried foods: Deep-fried foods often contain trans fats, which raise LDL (bad) cholesterol levels and can contribute to heart disease, stroke, and type 2 diabetes. They also produce free radicals, which damage and destroy cells. These factors are linked to macular degeneration and diabetic retinopathy. Consuming fruits and vegetables rich in vitamin C, like oranges, tangerines, grapefruit, tomatoes, and red bell peppers, can help mitigate the harmful effects of free radicals.

Sugary drinks: Sodas, sports drinks, energy drinks, and other sugary beverages contain high amounts of sugar. Excessive consumption of these drinks increases the risk of type 2 diabetes and heart disease, both of which can damage the eyes.

Alcohol: Alcohol abuse can cause both short-term and long-term vision problems. Short-term effects can include blurred vision, changes in color perception, and light sensitivity. Long-term issues involve structural changes in the eye or disruptions in communication between the eye and the brain. These more serious effects can include decreased vision, migraines, light sensitivity, and even blindness. Excessive alcohol consumption also increases the likelihood of developing cataracts at an earlier age.