The Claim
Smoking is associated with an increased risk of age-related macular degeneration, with pooled relative risk estimates ranging from 1.61 to 1.76 across study designs.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
People who smoke have a higher risk of developing age-related macular degeneration, a leading cause of blindness in older adults, compared to those who do not smoke.
See the scientific wording
Smoking is associated with an increased risk of age-related macular degeneration overall, with pooled relative risk estimates ranging from 1.61 to 1.76 across study designs, suggesting that smoking is one of the strongest modifiable risk factors for this leading cause of blindness in older adults.
Toxic chemicals in cigarette smoke enter the bloodstream and create harmful molecules that damage cells in the back of the eye. This damage triggers lasting inflammation that weakens the layer supporting the light-sensitive cells and clogs the blood vessels that feed them, causing those cells to die and vision to fade.
What the research says
1 studyStudy: Smoking and the risk of age-related macular degeneration: a meta-analysis.
This study found that people who smoke are about 60% to 96% more likely to develop a serious eye disease that causes blindness, compared to people who never smoked. That makes smoking one of the biggest preventable causes of this vision loss.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.