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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
TRIPLE
Enrollment
260
This Virtual reality video simulates the audiovisual experience of phacoemulsification (Phaco and IOL) surgery
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)
Time frame: collected before the intervention (VR video or conventional preoperative instructions) , immediately before the surgery, and immediately after the surgery
The change of Heart Rate
The change of heart rates before and during the surgery
Time frame: Before the intervention (VR video or conventional preoperative instructions) , immediately before the surgery, and during phacoemulsification.
The change of blood pressure
The change of blood pressure before and during the surgery
Time frame: collected before the intervention (VR video or conventional preoperative instructions) , immediately before the surgery, and during phacoemulsification
Pain level
Intraoperative participants self-reported pain level using numerical rating scale (NRS), from 0 (no pain) to 10 (highest pain)
Time frame: collected immediately after the surgery
Patients' cooperation level
The numerical rating scale (NRS) score of patient cooperation level assessed by the surgeon, from 0 (very bad cooperation) to 5 (very good cooperation)
Time frame: collected immediately after the surgery
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