Information provided by the American Academy of Ophthalmology
The Eye M.D. Association

OCULAR ROSACEA

What causes rosacea?

Scientists do not know what causes rosacea, but some think that genetics and environment may play a role in its development.

Some researchers believe that rosacea is a disorder that involves swelling of the blood vessels, resulting in flushing and redness. Other scientists think that a microscopic organism or mite in tine facial hair follicles may clog the skin’s oil gland openings, causing swelling and redness. Some research has also shown a possible link between rosacea and the bacteria called Helicobacter pylori – the same bacteria that cause gastrointestinal infections.

Several factors are known to aggravate (but not cause) rosacea, including:

• exposure to heat, sunlight, wind and cold;
• strenuous physical activity;
• drinking alcohol;
• consuming hot drinks or spicy foods;
• experiencing emotional stress;
• coughing for long periods.