Chronic pain linked to increased risk of dry eye disease

A study published in the American Journal of Ophthalmology has identified a significant link between chronic pain conditions and an increased risk of developing dry eye disease (DED). Using data from the TriNetX analytics network, researchers analyzed over 500,000 subjects and found that individuals with at least one chronic pain condition had a much higher incidence of DED compared to those without. In the first year of follow-up, 3.34% of patients with chronic pain developed the condition, compared to only 0.72% in the control group.

Chronic dry eye occurs when the eye's natural lubrication—a mix of mucus, fatty oils, and water—becomes unbalanced. If left untreated, persistent dryness can lead to corneal scarring, infections, and vision problems. Risk factors include advanced age, being female (particularly post-menopausal), radiation therapy, certain medications, laser eye surgery, and damaged tear ducts.

To mitigate risks, experts suggest diets rich in vitamin A and omega-3 fatty acids, proper rest, sun protection, and limiting eye strain. Patients with chronic pain are encouraged to seek regular ocular evaluations to manage potential symptoms.