Eye care guide
Smoking and eye health
Medical reviewer Mr Mohamed Mohyudin· Last recorded site review
About this review
This page inherits the site’s previous review record. A separate, current article sign-off has not yet been recorded.
How smoking harms the eyes
Tobacco smoke reduces blood flow and increases oxidative stress in eye tissues. Harm builds over years, which is why smokers develop cataracts earlier and AMD more often than non-smokers.
Cataracts and macular degeneration
The NEI and NHS both highlight smoking as a modifiable risk factor for two leading causes of sight loss.
- Smokers develop cataracts earlier and may need surgery sooner
- AMD risk rises significantly with smoking; former smokers retain some excess risk
- Second-hand smoke may also harm eye health over time
- Healthy diet and UV protection add benefit alongside quitting
Thyroid eye disease and other links
Smoking worsens thyroid eye disease in people with Graves' disease, increasing bulging, dryness and double vision risk. Smoking also raises complications after some eye surgeries and slows healing.
What helps after quitting
Vision already lost from advanced AMD cannot always be restored, but quitting reduces further risk. Regular eye exams, AREDS2 supplements only if advised for intermediate AMD, and good diabetes control all support long-term eye health.
Frequently asked questions
Does smoking cause blindness?
Smoking is a major avoidable risk factor for AMD and cataracts, two common causes of sight loss. Quitting reduces future risk even if you already smoke.
Can quitting smoking help my eyes?
Yes. Stopping slows AMD progression risk and improves outcomes in thyroid eye disease. The earlier you quit, the greater the benefit.
Should smokers have more frequent eye tests?
Smokers, especially over 50 or with diabetes or thyroid disease, should follow their clinician's advice on exam intervals, often at least every one to two years.
Trusted sources
For general background, these organisations provide eye-health information. This list is further reading, not a record that they reviewed this article.