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A Randomized Prospective Placebo-Controlled Study of the Effects of Lavender Aromatherapy on Preoperative Anxiety in
Philip Francis Stanley1, Lai Foon Wan1, Rostihar Abdul Karim1
1Department of Ophthalmology and Visual Sciences, Khoo Teck Puat Hospital, Singapore.
Purpose:
To determine if lavender aromatherapy can reduce preoperative anxiety in cataract surgery patients.
Design:
Single-center prospective randomized placebo-controlled trial.
Methods:
Seventy-five patients awaiting cataract surgery were randomized to lavender essential oil or grape seed oil (control) and administered the State-Trait Anxiety Inventory. Vital signs were also recorded.
Findings:
Patients in the lavender group showed greater improvements in self-reported anxiety using the State-Trait Anxiety Inventory (P = .023, two-sample t test). Compared with the control group, the effects of lavender on the reduction of anxiety were statistically significant when adjusting for age, gender, and baseline scores (P = .012, analysis of covariance).
Conclusions:
Lavender aromatherapy reduced anxiety in preoperative cataract surgery patients.
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