Skip to content

Blue light effects on insomnia

The investigation of shifting electronic diveses display from blue to longer wavelenght on sleep pattern

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
IRCT
Registry ID
IRCT2017013032168N2
Enrollment
50
Registered
2017-03-13
Start date
2017-02-19
Completion date
Unknown
Last updated
2018-02-22

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

Conditions

sleep disorder. Behavioral and emotional disorders.

Interventions

Intervention 1: Participants will be asked to work freely with your smart phone from 23 hours to 24 and then 24 hours to prepare for sleep. In one of these nights people will use their smart phone in
Lifestyle
Participants will be asked to work freely with your smart phone from 23 hours to 24 and then 24 hours to prepare for sleep. In one of these nights people will use their smart phone in the normal way.
Participants will be asked to work freely with your smart phone from 23 hours to 24 and then 24 hours to prepare for sleep. A night of software that can shift the wavelength of the light output from t
Participants will be asked to work freely with your smart phone from 23 hours to 24 and then 24 hours to prepare for sleep. In one of these nights people do not use smart phones. Everyone's waiting

Sponsors

Vice-Chancellor for Research, Shiraz University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 28 Years

Inclusion criteria

Inclusion criteria: The study included 50 students between the ages of 18 and 28 years and they have given their written informed consent will be done.

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

MeasureTime frame
The waiting time for sleep onset. Timepoint: The morning after the intervention. Method of measurement: Registered waiting for sleep onset to the average.;Sleep duration. Timepoint: The morning after the intervention. Method of measurement: Registered waiting for sleep onset to the average.;Waking Sleep Number. Timepoint: The morning after the intervention. Method of measurement: Registered waiting for sleep onset to the average.

Secondary

MeasureTime frame
Insomnia. Timepoint: The morning after the intervention. Method of measurement: Software that can shift the wavelength of the light output from the screen smart phones have relatively higher.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactDr. Seyed Mohammad Javad Mortazavi

Shiraz University of Medical Sciences

mmortazavi@sums.ac.ir; mortazavismj@gmail.com; sjarideh726@gmail.com+98 71 3230 8113

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026