Clinical Trial Finds Laughter As Effective as Eye Drops for Dry Eyes
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Laughter may be as effective as eye drops in improving symptoms of dry eye disease, finds a clinical trial published by The BMJ.
The researchers suggest that laughter exercise could be an initial treatment for relieving symptoms of dry eye disease.
Dry eye disease (DED) is a chronic condition estimated to affect around 360 million individuals worldwide. Common symptoms include uncomfortable, red, scratchy or irritated eyes.
But whether laughter therapy has a beneficial effect on dry eye disease is still unknown.
To explore this further, researchers from China and the UK set out to assess the effectiveness and safety of laughter exercise in patients with symptoms of dry eye disease.
Their findings are based on 283 participants aged 18-45 years (average age 29; 74% female) who were assessed for dry eye disease using the ocular surface disease index (OSDI) score and randomly assigned to receive laughter exercise or 0.1% sodium hyaluronic acid eye drops four times a day for eight weeks.
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