Forget eye drops – The latest treatment for dry eye disease might be laughter. An exciting study from China finds that a daily dose of laughter could be as effective as artificial tears in treating this common eye condition.

In a new study published in the British Medical Journal, researchers in China and the U.K. demonstrate that a simple laughter exercise performed four times a day can rival the effectiveness of artificial tears in alleviating the symptoms of dry eye disease. This finding not only offers a cost-effective and drug-free alternative to traditional treatments but also adds a touch of joy to eye care routines.

Dry eye disease is a common and complex condition characterized by chronic eye discomfort, tear film instability, and visual disturbances, affecting approximately 360 million people worldwide. Contributing factors include aging, increased use of digital devices, and environmental pollutants. While artificial tears are the primary treatment, dry eye disease significantly impacts quality of life and imposes economic burdens, particularly on long-term users.
Studies have shown a link between dry eye disease and mental health conditions such as depression and anxiety, with symptoms of dry eye being more strongly correlated with these mental health issues than with clinical signs.

Laughter Yoga, known for its benefits in reducing depression, anxiety, and stress, has been explored as a potential treatment for dry eye disease. Though its impact on dry eye disease is not fully understood, preliminary studies suggest that laughter may improve tear film stability and reduce symptoms.

How Laughter Helps Dry Eyes:

• Laughter triggers muscle movements, especially around the eyes, which stimulates tear secretion and enhances tear film stability.
• Positive emotions associated with laughter may boost tear production through relaxation and reduced stress.
• This study suggests that laughter exercises could provide a simple, low-cost, and environmentally friendly alternative to eye drops for managing mild to moderate dry eye symptoms.

To see the original research paper published in the British Medical Journal (BMJ).
www.bmj.com/content/386/bmj-2024-080474