The effect of smoking on vision

Smoking has been confirmed to be related to the following eye diseases and may even exacerbate the severity of the disease:


Cataracts make the natural lenses of the eyes cloudy. It has become one of the most important causes of blindness worldwide. Compared with non-smokers, smokers are more likely to increase the risk of this eye disease. Heavy smoking (15 cigarettes per day) Or above) three times the risk of developing cataracts than non-smokers.

Age-related macular degeneration (AMD)

Studies have confirmed that smokers are three to four times more likely to develop AMD than non-smokers. Specifically, both smokers and former smokers are at higher risk. Non-smokers who live with smokers may also develop AMD. The risk doubled. Age-related macular degeneration (AMD) mainly affects the macula. The macula is the center of the retina. The disease can cause blind spots and severely impair central vision. Losing the health of this part will cause you to lose the sharpness of the visual field, the central visual field, and the fine details of the observation. ability. In a study, AMD is one of the leading causes of permanent blindness in Americans 65 and older.

An important and alarming fact is that smoking is the biggest controllable factor among the risk factors associated with AMD. If you quit smoking at any age, or even later in life, you can significantly reduce your risk of developing AMD.

Diabetic retinopathy

Smokers with diabetes increase the risk of diabetic retinopathy, which damages the blood vessels in the retina, causing blurred or distorted vision, and more likely to cause vision loss.

If people with diabetes maintain the habit of smoking, it will be difficult to control their condition. In addition to diabetic retinopathy, related complications include heart disease, stroke, vascular disease, kidney disease, nerve damage, foot disease, etc.


Iriditis is an inflammation of the middle layer of the eye or the uvea. It can also damage other important parts of the eye, such as the iris and retina. This is a serious eye disease, which may lead to various complications such as cataracts, glaucoma, and even total blindness.

Studies have shown that smokers are 2.2 times more likely to suffer from uveitis than non-smokers. Smoking has a clear relationship with the occurrence of uveitis.

Infant eye disease

Smoking is not only harmful to adult smokers, but also harmful to women who smoke during pregnancy and their upcoming babies. Smoking causes dangerous toxins to spread to the placenta and may harm unborn children. This increases the chance of the fetus/baby suffering from eye diseases, not to mention other serious health problems that smoking may cause.

Healthy living habits bring healthy eyes

It is never too late to quit smoking. You can quit smoking at any age and reduce your risk of developing a variety of eye diseases that constitute visual impairment. By doing the following, you can reduce the risk of vision loss:

  • Eat healthy foods (including green leafy vegetables, fruits and foods rich in vitamin C, E and β-carotene): People who eat more leafy vegetables will reduce the risk of glaucoma by 20-30%. Nitrate in green leafy vegetables It can be converted into nitric oxide, which improves blood flow and helps regulate intraocular pressure.
  • Exercise regularly and stay active: People who do moderate to vigorous exercise regularly can reduce their risk of glaucoma by 73%.
  • Regularly visit an eye care expert: It must be a good start to constantly understand and update your current health status. For example, Healthspan is an advanced epigenetic test, and smoking is one of the most important biomarkers. With the help of a health professional, you can track your progress and find ways to improve your health, including your eyesight.
  • Consider taking trusted eye health supplements: For the best results of your healthy vision plan, please consider taking prescription or trusted vision recovery nutritional supplements to help improve your eye health.

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