Researchers at the University of Auckland conducted a clinical trial of castor oil as a potentially safe and natural treatment for dry eye conditions. Approximately 58 per cent of the Australian population aged 50 and up are affected by dry-eye illness. Some risk factors for developing dry eye disease include advanced age, menopause, increased screen time, and contact lens wear.
Doctoral candidate and lead clinical investigator Catherine Jennings said, “Currently, patients are left grappling with symptoms of dryness, grittiness and, in some cases, watery eyes that feel uncomfortable impacting on their quality of life and work productivity.” Current treatments, such as antibacterials and anti-inflammatories, are generally unsuitable for long-term use due to significant side effects and the potential for antimicrobial resistance.
Jennings said, “Often patients are left feeling helpless when attempting to manage a chronic condition. The previous pilot study, conducted by our research team, was unique in its use of castor oil in such an application on the eyelids, with the product not known to be used anywhere else in the world for treating blepharitis.”
Principal investigator Professor Jennifer Craig said, “Castor oil has been proposed as a natural product that could offer a safe, effective and easy-to-use alternative to existing therapies. My hope is this study will produce evidence-based guidance for clinicians about offering castor oil as a possible management option for patients suffering from blepharitis so they continue to enjoy a great quality of life, read the books they love, be productive in their work environment and enjoy other visual hobbies.”
