Skip to content

The Effect of Bright Light Exposure on Postoperative Emergence Time in Patients Undergoing General Anesthesia: A Randomized Controlled Trial

The Effect of Bright Light Exposure on Postoperative Emergence Time in Patients Undergoing General Anesthesia: A Randomized Controlled Trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600119943
Enrollment
Unknown
Registered
2026-03-05
Start date
2026-03-05
Completion date
Unknown
Last updated
2026-03-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None

Interventions

Intervention group:After anesthesia induction, the patient was exposed to 3000 lux of bright light until the endotracheal tube was successfully removed after surgery.
Control group:The patient was only exposed to normal indoor light (approximately 200 lux) during the perioperative period.

Sponsors

The Affiliated Hospital of Xuzhou Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Age >= 18 years; 2. American Society of Anesthesiologists (ASA) grades I through III; 3. Patients scheduled for elective laparoscopic surgery with an expected general anesthesia duration of more than 2 hours.

Exclusion criteria

Exclusion criteria: 1. BMI>35 kg/m^2; 2. Emergency surgery. 3. Difficult airway (anticipated or previously documented). 4. Pre-existing or current severe ocular diseases (including ocular surgery within the past 3 months). 5. Severe or uncontrolled respiratory, circulatory, hepatic, or renal dysfunction. 6. History of sleep disorders (e.g., Obstructive Sleep Apnea, Chronic Insomnia). 7. Use of long-acting sedatives/hypnotics within 7 days prior to surgery. 8. Patients undergoing central nervous system (CNS) or cranial surgery, neck vascular surgery, and cardiac surgery; 9. Significant intraoperative hemodynamic instability or other severe perioperative complications. 10. Pregnant, possibly pregnant, or lactating women. 11. Photosensitive epilepsy or contraindications to bright light stimulation. 12. Inability to cooperate or inability to provide written informed consent.

Design outcomes

Primary

MeasureTime frame
Emergence time;

Secondary

MeasureTime frame
Postoperative dry eyes, ocular pain, and other ocular adverse events reported by the patient or diagnosed by an ophthalmologist;Vital Signs (including heart rate, blood pressure, respiratory rate, and body temperature) and Arterial Blood Gas (ABG) Status.;pain score;Incidence of Delayed Emergence;Respiratory-related complications;Incidence of Emergence Agitation (EA);PACU Length of Stay;

Countries

China

Contacts

Public ContactSu Liu

The Affiliated Hospital of Xuzhou Medical University

150040009@gmail.com+86 516 85805911

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Mar 14, 2026