Up to 50 percent of people who have rosacea experience eye problems, which include:
- Excess tears
- The feeling of having sand in the eye
- Sensitivity to light
- Blurred vision or some other kind of vision problem
- Eyelids that become inflamed and swollen.
(Click Ocular Rosacea for more information.)
Although doctors do not know the exact cause of rosacea, there are plenty of theories. Some doctors believe that rosacea occurs when blood vessels expand too easily, which causes flushing. Other doctors believe that the condition is inherited.
Although the following is not proven, some people believe that one or more of the following triggers can cause rosacea:
- Heat (including hot baths)
- Heavy exercise
- Very cold temperatures
- Hot or spicy foods and drinks
- Drinking alcohol
- Emotional stress
- Long-term use of steroids on the face.
(Click Rosacea Causes for more information.)
In order to diagnose rosacea, dermatologists need to examine a patient's symptoms, because there are not tests that diagnose this disease. However, there are very few people who have all of the symptoms of this disorder, which can make rosacea hard to diagnose. If a patient has family members with rosacea, then doctors will usually make a rosacea diagnosis, even if there are only a few apparent symptoms.
(Click Diagnosing Rosacea for more information.)