An interventional study of Aromatherapy and Placebo in Cataract, Surgery and Vitrectomy, sponsored by National University Hospital, Singapore. Completed at 1 site in Singapore. Open to participants aged 21 Years and older. Per ClinicalTrials.gov, last updated 2025-11-19.
Sponsored by National University Hospital, Singapore · Not applicable, Interventional, and Prevention
This study looks at whether aromatherapy (scent chosen by the patient), is better than routine care, at reducing preoperative anxiety before eye surgery.
1,701 studies on the registry are indexed under Cataract; 230 are open to participants now.
This study's enrollment of 64 is below the median of 80 across 1,155 interventional studies indexed under Cataract.
Browse Cataract studies →National University Hospital, Singapore is the lead sponsor of 444 studies on the registry; 96 are open to participants now.
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Exclusion Criteria:
Patients were asked to choose amongst 4 different aromatherapy scents. The study administrator then stuck an adhesive patch without any aromatherapy oil on it, to the patient's facemask. This was worn throughout the perioperative experience from the ambulatory ward to the operating theatre and post anaesthesia care unit (PACU).
Other: Placebo
Patients were asked to choose amongst 4 different aromatherapy scents. The study administrator then stuck an adhesive patch with 1 drop of their chosen aromatherapy oil on it, to the patient's facemask. This was worn throughout the perioperative experience from the ambulatory ward to the operating theatre and post anaesthesia care unit (PACU).
Other: Aromatherapy
patients chose their preferred aromatherapy scent to be used for at least 30 minutes
Also known as: lavender, geranium, lemongrass, sandalwood
odorless dry absorbent adhesive patch
change in VAS scores for preoperative anxiety
preoperative anxiety was ranked by the patient on a scale of 0-100 on a visual acuity scale (VAS) measuring 100mm, in the preoperative ambulatory ward, before and after the intervention/placebo was applied for at least 30 minutes. The change in the VAS score at these 2 timepoints was the primary outcome
Time frame: 30-60 minutes
Plan to share: No — local Patient Data Protection Act
No publications or documents are linked to this record.
This study is completed, as verified in Jun 2025. You cannot join it, but the record below documents what was studied.
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National University Hospital, Singapore