7 things that are harmful to the eyes

Vitamin B12 deficiency can cause blurred vision or double vision. Ultraviolet rays can burn the cornea, damage the lens and retina, increase the risk of cataracts.

Lifestyle, working culture, eating habits, environmental pollution and attitudes towards health are factors that can affect the overall health of the body. And the eyes are also often affected by unhealthy lifestyles. According to Medic Magic, here are some things that can harm the health of the eyes:

1. Smoking

Smoking has a negative effect on general body health. This bad habit can also cause eye damage. There are many chemicals in cigarettes that can damage sensitive parts of the retina, called macula.

2. Allow your eyes to overwork

Working with computers, watching TV, reading books, studying . for many hours caused eye damage.(Photo: venusbuzz)

Sometimes we don't realize that we're putting too much pressure on our eyes. We often work in front of a computer, watch television, play video games, read books or study for hours. It makes eyes tired, can lead to injury.

3. Ultraviolet rays

You are always advised to wear sunglasses when you go out. That's because ultraviolet rays from the sun can be harmful to eye health. These rays can burn the cornea, damage the eye and retina lenses. In addition, ultraviolet rays also increase the risk of cataracts.

4. High blood pressure

High blood pressure can be very harmful to the eye if left untreated. It adversely affects blood vessels in the retina, areas in the back of the eye. This disease is called hypertensive retinopathy - pathological changes in the retina due to high blood pressure.

5. Diabetes

If you have been diagnosed with diabetes, it is more likely that it will develop some eye diseases such as glaucoma, diabetic retinopathy, when the retina can be seriously damaged.

6. Alcohol

Alcohol can cause vision and overall health problems.(Photo: telepgraph)

Excessive drinking can harm the body, including the eyes. Alcohol can cause vision and overall health problems. You may experience visual impairment, slow eye reactions, frequent migraines, red eyes and decreased contrast sensitivity.

7. Unhealthy diet

If you have an unhealthy diet and your body does not receive the necessary nutrients for healthy eyes, you will be more susceptible to many eye diseases. Vitamin A deficiency causes blindness or difficulty in seeing at night and dry eyes. Similarly, lack of vitamin B12 can cause blurred vision or double vision.