--- title: "Smoking and eye health | Eye Health Guide" description: "How smoking affects the eyes, links to cataracts, macular degeneration and thyroid eye disease, and why quitting protects vision. NEI and NHS-aligned." url: https://eyehealthguide.org/eye-care/smoking-and-eye-health/ source: Eye Health Guide licence: "General information only. Cite the URL and the named medical reviewer." --- Eye care guide # Smoking and eye health Medical reviewer [Mr Mohamed Mohyudin](https://eyehealthguide.org/reviewers/mohamed-mohyudin/)· Last recorded site review July 6, 2026 ### About this review This page inherits the site’s previous review record. A separate, current article sign-off has not yet been recorded. [How review works](https://eyehealthguide.org/reviewers/) · [Official biography & credentials](https://mohamedmohyudin.co.uk/author/mohamed-mohyudin/) Quick answer Smoking doubles to quadruples the risk of age-related macular degeneration (AMD) and increases cataracts, optic nerve damage and thyroid eye disease severity. Quitting at any age slows further damage. If you smoke and have thyroid disease or diabetes, eye checks are especially important. ### On this page ⌄ 1. How smoking harms the eyes 2. Cataracts and macular degeneration 3. Thyroid eye disease and other links 4. What helps after quitting 5. Frequently asked questions ## 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. Your next step ## Take this to your appointment Write down what has changed, when it started, your current medicines and the questions you want answered. Take these to your eye-care appointment. Sudden loss of sight, severe eye pain or a dark curtain across vision needs immediate assessment. Do not wait to complete a worksheet. ## Trusted sources For general background, these organisations provide eye-health information. This list is further reading, not a record that they reviewed this article. - [NHS — Health A to Z](https://www.nhs.uk/conditions/) - [Moorfields Eye Hospital NHS Foundation Trust](https://www.moorfields.nhs.uk/) - [American Academy of Ophthalmology — EyeHealth](https://www.aao.org/eye-health) - [National Eye Institute (NIH)](https://www.nei.nih.gov/) - [College of Optometrists — Look After Your Eyes](https://lookafteryoureyes.org/) - [World Health Organization — Eye care, vision impairment and blindness](https://www.who.int/health-topics/blindness-and-vision-loss)