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Light and Anesthesia

Effects and Mechanisms of Ambient Light Intensity on the Depth of General Anesthesia

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07517484
Enrollment
66
Registered
2026-04-08
Start date
2025-10-03
Completion date
2026-05-01
Last updated
2026-04-08

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

Conditions

Light, Anesthesia, Sedation

Keywords

light, anesthesia, sedation depth

Brief summary

The objective of this clinical trial is to investigate the effect of light exposure on sedation depth during general anesthesia.The primary research questions this study aims to address include: Does light condition affect the dosage of anesthetic medications during anesthesia? By what mechanism does light exposure exert an influence on anesthesia? Participants will be randomly allocated to either the light-shielded group or the non-light-shielded group.Patients in the light-shielded group will wear an eye shield during anesthesia. The following data will be recorded for all patients: Induction drug dosage Induction time Intraoperative anesthetic dosage Emergence time

Interventions

DEVICEeye mask

Patients in the light-shielded group will wear an opaque eye mask 30 minutes prior to induction of general anesthesia and continue to do so until the cessation of sedative medications for anesthesia.

Sponsors

Peking University People's Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Masking description

Data analyst

Eligibility

Sex/Gender
ALL
Age
18 Years to 64 Years
Healthy volunteers
No

Inclusion criteria

* a. Age between 18 and 65 years, regardless of gender; * b. ASA physical status I-II; * c. 18.5 ≤ BMI ≤ 28; * d. Signed written informed consent.

Exclusion criteria

* a. Blindness or history of photosensitivity disorders; * b. Patients requiring medication for sleep, or with a history of sleep disorders; * c. Presence of neurological diseases; * d. Pregnancy; * e. Severe hepatic or renal dysfunction; * f. History of anesthetic drug abuse or alcohol abuse; * g. History of adverse anesthesia events (difficult airway, allergy to anesthetic agents).

Design outcomes

Primary

MeasureTime frameDescription
The dose of sedative medicationsPerioperativeThe dose of sedative medications required during the induction period in patients

Secondary

MeasureTime frameDescription
Induction time of anesthesiaPerioperativeInduction time of anesthesia
total dose of sedative medicationsduring surgerytotal dose of sedative medications required to maintain a certain range of anesthetic depth during surgery
emergence timePerioperativeemergence time after drug discontinuation

Countries

China

Contacts

CONTACTYi Feng, Ph.D
doctor_yifeng@sina.com010-88325590
CONTACTXiaoyan Li, Ph.D
2411110461@bjmu.edu.cn18810599681

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 9, 2026