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Filtered Eyewear to Prevent Light-induced Melatonin Suppression - Aim 1

NCT06310135 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 29

Last updated 2025-08-05

No results posted yet for this study

Summary

The aim of this study is to determine the relative effectiveness of monocular and binocular light exposures, with and without selective blue-blocking filtering, on nocturnal melatonin suppression, subjective sleepiness, and visual performance of night shift workers.

Conditions

  • Sleep Quality

Interventions

DEVICE

Filtered Eyewear

Filtered binocular viewing condition will be produced by eyeglasses frames with orange-tinted blue-blocking filter, eliminating all optical radiation for wavelengths shorter than 540 nm. For the filtered monocular condition, only the lens on the eyeglasses frame on the non-dominant eye will be tinted with the blue-blocking filter.

DEVICE

Unfiltered Eyewear

For the unfiltered binocular, the subjects will wear transparent eyeglasses frames with no optical power. Unfiltered monocular vision will be produced by an opaque eyepatch occluding the non-dominant eye.

OTHER

No Filters

Dim lights with no filters.

Sponsors & Collaborators

Principal Investigators

  • Mariana Figueiro · Icahn School of Medicine at Mount Sinai

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-05-01
Primary Completion
2024-10-31
Completion
2024-10-31

Countries

  • United States

Study Locations

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Entities

Companies

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 NCT06310135 on ClinicalTrials.gov