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A Self-controlled Study of the Effect of Partial Spectral Absence of Visible Light on the Pupil

NCT06501131 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 66

Last updated 2024-07-15

No results posted yet for this study

Summary

Previous studies have shown that the spectrum of light influences myopia. LED lights with a partially absent light spectrum increase the risk of myopia progression compared to LEDs with a full spectrum, potentially mediated by the excitability of the parasympathetic nervous system. This study intends to compare pupil size and area, as well as parameters regulated by the autonomic nervous system (such as skin bioelectrical activity and heart rate), between LEDs with a full visible spectrum and LEDs with a partially absent spectrum around 470nm and 730nm. We aim to elucidate the physiological mechanism underlying the effect of light spectrum on pupil changes and myopia.

Conditions

  • Full Spectrum

Interventions

OTHER

full-spectrum light exposure

Subjects will stay in a room with full spectrum light for 5 minutes. After 5 minutes wash-out period, altenate to the other arm.

OTHER

specific spectrum absence light exposure

Subjects will stay in a room with ordinary LED light for 5 minutes. After 5 minutes wash-out period, altenate to the other arm.

Sponsors & Collaborators

  • Zhongshan Ophthalmic Center, Sun Yat-sen University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Model
CROSSOVER

Eligibility

Min Age
7 Years
Max Age
45 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-07-24
Primary Completion
2024-08-31
Completion
2024-09-30

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06501131 on ClinicalTrials.gov