MedTrace Logo

The Effect of Varying Brightness on Palpebral Aperture

NCT05210491 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 40

Last updated 2022-01-27

No results posted yet for this study

Summary

We aim to establish the point at which glare from bright lights begins to engage our eyelids - causing us to "squint". We will be using a video camera with an LED ring light around it facing the volunteer and we will record the eyelid position as the light brightness is increased gradually. Many studies have looked at the effect glare has on a person through qualitative questionnaires but few have been able to quantify this.

Conditions

  • Eyelid Ptoses

Interventions

OTHER

Review of eyelid positioning in increasing brightness levels

Up to 30 seconds, three times, looking into a video camera as glare is incrementally increased.

Sponsors & Collaborators

  • National Health Service, United Kingdom

    collaborator OTHER_GOV

  • Royal Free Hospital NHS Foundation Trust

    collaborator OTHER

  • University of Edinburgh

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2022-01-14
Primary Completion
2022-02-21
Completion
2022-02-21

Countries

  • United Kingdom

Study Locations

More Related Trials

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 NCT05210491 on ClinicalTrials.gov