NCT07620821

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

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
260

participants targeted

Target at P75+ for not_applicable

Timeline
4mo left

Started Jun 2026

Shorter than P25 for not_applicable

Status
not yet recruiting

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

Study Progress12%
Jun 2026Sep 2026

First Submitted

Initial submission to the registry

May 27, 2026

Completed
5 days until next milestone

Study Start

First participant enrolled

June 1, 2026

Completed
1 day until next milestone

First Posted

Study publicly available on registry

June 2, 2026

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 30, 2026

Expected
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2026

Last Updated

June 2, 2026

Status Verified

May 1, 2026

Enrollment Period

3 months

First QC Date

May 27, 2026

Last Update Submit

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

EXPERIMENTAL

30 participants receive virtual reality simulation of intraoperative audiovisual experience before the surgery.

Device: Virtual reality simulation of intraoperative audiovisual experience

Usual Care Group (No VR)

NO INTERVENTION

Participants with conventional preoperative instructions (no VR video)

Interventions

This Virtual reality video simulates the audiovisual experience of phacoemulsification (Phaco and IOL) surgery

Also known as: VR simulation, VR video
VR Intervention Group

Eligibility Criteria

Age20 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

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

Cataract

Condition Hierarchy (Ancestors)

Lens DiseasesEye Diseases

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