VR for Cataract Anxiety Lowering Management--A RCT Study
VR-CALM
A Randomized Controlled Study of Virtual Reality Simulation of Intraoperative Audiovisual Experience to Reduce Anxiety in Cataract Surgery Patients
1 other identifier
interventional
260
0 countries
N/A
Brief Summary
Cataract is currently the leading cause of blindness globally, and surgery is the only effective treatment. With the advancement of medical technology, cataract surgery is usually performed under topical anesthesia, which means patients will be awake during the procedure, able to see the light from the surgical lamp and hear the sounds of surgical instruments being operated. Some patients may feel nervous or scared due to unfamiliarity with the surgical process, which may lead to increased blood pressure, rapid heartbeat, and even affect their cooperation during the surgery.Virtual reality (VR) technology is a new multimedia technology. By wearing VR glasses, patients can immerse themselves in a virtual world and see and hear realistic scenes. Through this study, the investigators aim to investigate whether allowing cataract patients to "experience" a surgical procedure in advance through VR glasses before cataract surgery can help alleviate their nervousness during the actual surgery.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jun 2026
Shorter than P25 for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 27, 2026
CompletedStudy Start
First participant enrolled
June 1, 2026
CompletedFirst Posted
Study publicly available on registry
June 2, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 30, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
September 30, 2026
June 2, 2026
May 1, 2026
3 months
May 27, 2026
May 27, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
The change of anxiety level evaluated by numerical rating scale (NRS)
The change of participants self-reported anxiety levels before and during the surgery, evaluated by numerical rating scale (NRS), from 0 (no anxiety) to 10 (highest anxiety)
collected before the intervention (VR video or conventional preoperative instructions) , immediately before the surgery, and immediately after the surgery
Secondary Outcomes (4)
The change of Heart Rate
Before the intervention (VR video or conventional preoperative instructions) , immediately before the surgery, and during phacoemulsification.
The change of blood pressure
collected before the intervention (VR video or conventional preoperative instructions) , immediately before the surgery, and during phacoemulsification
Pain level
collected immediately after the surgery
Patients' cooperation level
collected immediately after the surgery
Study Arms (2)
VR Intervention Group
EXPERIMENTAL30 participants receive virtual reality simulation of intraoperative audiovisual experience before the surgery.
Usual Care Group (No VR)
NO INTERVENTIONParticipants with conventional preoperative instructions (no VR video)
Interventions
This Virtual reality video simulates the audiovisual experience of phacoemulsification (Phaco and IOL) surgery
Eligibility Criteria
You may qualify if:
- Diagnosed with cataracts in one or both eyes, and planning to undergo surgical treatment
- Voluntarily participate in this trial and sign the informed consent form.
You may not qualify if:
- History of previous ophthalmic surgery
- Suffering from severe hearing impairment, unable to comprehend VR video content.
- Those who suffer from cognitive dysfunction or mental illness and are unable to cooperate in completing the scale assessment.
- Suffering from severe macular diseases, glaucoma, or other ocular diseases that may affect surgery or interfere with the assessment of tension level.
- Assessed as intolerant to topical anesthesia for the surgery.
- History of motion sickness, severe vertigo, or intolerance to VR video viewing (such as claustrophobia).
- Other situations where the researcher deems the participant unsuitable for participation in this study.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
May 27, 2026
First Posted
June 2, 2026
Study Start
June 1, 2026
Primary Completion (Estimated)
August 30, 2026
Study Completion (Estimated)
September 30, 2026
Last Updated
June 2, 2026
Record last verified: 2026-05
Data Sharing
- IPD Sharing
- Will share