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       XXIX Annual Congress of the Iranian Society of Ophthalmology        بـیــست و نهمین کنــگــره سـالیـانه انـجـمـن چـشـم پـزشـکی ایـــران
مقاله Abstract


Title: A comparison of central and peripheral refraction between 4-6 years old Children user and non-user of smartphones and/or other electronic screens
Author(s): Mirzajani A, Hosseini M, Jafarzadehpur E, Abolghasemi J
Presentation Type: Oral
Subject: Strabismus & Neuro-ophthalmology
Others:
Presenting Author:
Name: Ali Mirzajani
Affiliation :(optional) Iran University of Medical Sciences
E mail: mirzajani.a@iums.ac.ir
Phone: 02188223400
Mobile: 09123897841
Purpose:

The purpose of the present study is to compare central and peripheral refraction between children of 4-6 years old user and non-user of smartphones and /or other electronic screens.

Methods:

In this cross-sectional study, 106 children aged 4-6 years old were enrolled in two groups of user (56 children: 34 boys and 22 girls) and non-user (50 children: 30 girls and 20 boys) of smartphones and /or other electronic screens. The user group used smartphones and /or other electronic screens for 1-3 hours a day for at least one year and non-user group either did not use these screens or used less than half an hour occasionally and not every day. All children have visual acuity of at least 20/20 with or without correction and showed no other ocular or systemic diseases. Both groups were evaluated for central refraction and peripheral refraction up to 20° eccentricity in nasal and temporal directions and up to 10° eccentricity in superior direction using the Shin-Nippon K5001 autorefractometer. The outcome measures were compared with SPSS statistical software.

Results:

Comparing the findings did not show any statistically significant difference in terms of central and peripheral refraction in superior, nasal and temporal eccentricities between the user and non-user groups (P>0.05).

Conclusion:

According to the results of the present study, it concludes that using smartphones and/or other electronic screens for 1-3 hours a day do not show any effect on central and peripheral refraction in children with low range of refractive states.

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