A smoker is four times more likely to lose their sight than someone who has never smoked, according to charity Eye Health UK.
Chemicals in tobacco smoke trigger biological changes in the eye that can lead to eye disease including age-related macular degeneration (AMD), cataracts and thyroid eye disease.
It can also cause poor eye health by contributing to conditions such as dry eye, uveitis and impair colour vision.
Research published in the British Medical Journal reveals one in five cases of AMD, the UK′s leading cause of blindness, can be directly attributed to tobacco consumption - equating to around 120,000 cases of AMD across the country.
"Cigarettes cause blindness yet Britain′s seven million smokers are largely unaware of the dangers,? said David Cartwright, chairman of Eye Health UK.
?Fewer than 10 per cent realise smoking can affect their eye health.
?This compares to 92 per cent associating smoking with lung cancer and 87 per cent identifying a link between smoking and the risk of heart disease.?
He said: "Half of all sight loss in the UK is avoidable and smoking is the single biggest modifiable risk factor.
?Joining the NHS smoke free programme will improve your eye health and significantly reduce your risk of losing your sight.
?After a decade or so being smoke free your risk of sight loss reduces to that of a non-smoker."
Any amount of smoking, even light, occasional or second-hand can affect eye health and increase your chances of suffering sight-threatening eye diseases, Eye Health UK suggests.
Smoking increases the risk of nuclear cataracts - which form in the centre ?nucleus′ of the lens - three-fold.
The risk of thyroid eye disease - a condition affecting more than 400,000 people in the UK - surges by more than eight times for heavy smokers.
Smoking cigarettes has also been found to increase the risk of dry eye syndrome - a painful condition characterised by the following symptoms - a sandy-gritty irritation that gets worse as the day goes on, dryness, a burning sensation, itchy, red or tired eyes, and, a feeling that you have some dust in your eye.
Smokers who consume more than 20 cigarettes per day may suffer colour vision defects.
Nicotine poisoning can make it difficult to clearly distinguish colours with a red or green hue.
David Cartwright added: "Having regular sight tests, once every two years unless advised otherwise by your optometrist, is vital for everyone but never more so than for smokers.
?Early detection of conditions such as AMD is essential to prevent avoidable sight loss."
Whole-body vibration may be as effective as regular exercise
5 Tips to Take Care of Your Sensitive Skin
Just ten minutes of play a day can help children reduce their risk of developing heart disease and diabetes later in life
Do you want to be paid for sleeping well at night?
How to Do Face Cleansing at Home?
10 Natural beauty tips for face you must try
Natural Ways to Remove Blackheads on Face and Nose
9 Super Simple Exercises to Reduce Belly Fat
★4 Superfoods for a Healthy Looking Skin
★Stop Lusting For a Radiant Skin Possess it with the Help of Super Foods
★Learn to Do Vinyasa Yoga for Weight Loss
★8 Time-Saving Meal Prep Ideas Nutritionists Actually Use
★Flex Your Memory Muscle
★Is This the Best Diet for Post-Menopausal Women?
★8 Practical Tips to Lose Weight Without Dieting
★Top Fitness Stars Share Their Most Common Workout Habits
★The Key to Healthy Aging
★Daylight Savings Time: That miserable time of year when many mourn loss of one-hour sleep
★Fasting might be good for your healh, research says
★How your make-up bag could wreck your health
★Whole-body vibration may be as effective as regular exercise
★How to exercise outdoors, when the smogs a killer
★Numerous health benefits of bitter melon (uses , side effects)
★Fruitylicious cure for ageing skin
★Losing Weight in Hot Weather Made Easy
★Healthy food that tastes good too
★Popular weight loss strategies
★Smoking and sight loss warning
★Top 3 Core Exercises While Pregnant
★The tangy taste of Banaras
★7 Filling Foods to Keep Belly Fat at Bay
★12 Benefits of Hair Spa Treatment
★Five foods that can cause problems if consumed on an empty stomach!
★6 Best Oils for a Naturally Clear and Glowing Skin
★5 Dairy-Free Cheese Options Worth Trying
★Why most people use emotional words to persuade others
★Plum goodness for your hair!
★Humans evolved to benefit from fermented foods
★Research reveals surprising health benefits of chewing your food
★6 Best Oils for a Naturally Clear and Glowing Skin
★A Beginners Guide to Sun Salutations
★Recycling temple waste along the Ganges with Help Us Green
★Why You Probably Shouldnt Take Diet Advice from Your CrossFit Coach
★How To Achieve The Perfect Nail Shape
★Exercise can help boost memory through bone hormone: Study
★The amazing and healthy benefits of meditation!
★5 Ways to Dry Herbs
★Hair removal injuries rocketed NINE-FOLD since 1991
★This One Exercise Helps You Become a Better Runner
★Ways to Use Honey for a Glowing Skin
★Why You Need to Start Combining Avocados and Peaches
★5 foods for healthy skin
★How to Make Elderberry Syrup
★Working It Out: The future of work and digital
★9 Super Simple Exercises to Reduce Belly Fat
★10 questions about laser hair removal
★12 Real Amazing Benefits Of Skipping For Weight Loss
★5 DIY masks for your various hair concerns