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Ambient Light Levels in the Kindergarten and Schools and the Relation to Refractive Development

NCT02854891 · Status: UNKNOWN · Type: OBSERVATIONAL · Enrollment: 200

Last updated 2016-08-04

No results posted yet for this study

Summary

Myopia, the most common human eye disorder, is a phenomenon characterized by an unconstrained elongation of the eye globe There are number of theories concerning the environmental effect on the emmetropization process, most are related to childhood exposure to outdoor activity, near work and sleep with night light. Studies in lab animals found an association between intensity of ambient lighting and myopia development.

In this study, the investigators will examine the ambient light in kindergarten and schools and their relation to refractive error. Diurnal luminance in kindergarten and school class room will be measured and correlated to biometric measures such as refraction, axial length and keratometry.

Conditions

  • Myopia

Interventions

OTHER

autorefractometer, A-scan ultrasound

A measurement of refraction will be made by the Autorefractometer. A measurement of the eyes' biometer data will be made by A-scan ultrasound.

Sponsors & Collaborators

  • Hillel Yaffe Medical Center

    lead OTHER_GOV

Eligibility

Min Age
4 Years
Max Age
17 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2016-08-31
Primary Completion
2017-02-28
Completion
2017-09-30

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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 NCT02854891 on ClinicalTrials.gov