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


Title: The Prevalence of Amblyopia in Children 7-12 years old, living in Tehran (Iran) in 2013.
Author(s): RajaviZh, MD; Sabbaghi H, MS; Shojaee A, MD; Yaseri M, Ph.D; AkbarianSh, MS; Haftabadi N, BS; Hosseini S, MS; Sheibani K, MD
Presentation Type: Oral
Subject: Strabismus & Neuro-ophthalmology
Others:
Presenting Author:
Name: Zhale Rajavi
Affiliation :(optional) Ophthalmic Research Center, ShahidBeheshti University of Medical Science, Tehran, Iran, Imam Hossein Medical Center
E mail: zh_ra2000@yahoo.com
Phone: 22170799
Mobile: 09123306590
Purpose:

To determine the prevalence of amblyopia, refractive errors and strabismus among 7-12 years primary schools children of Tehran in 2013.

Methods:

This population based cross-sectional survey was performed on 2410 students from 40 randomly selected primary schools of Tehran. Visual acuity (VA) was tested by yang vision tester Snellen E-optotype. Refractive error was measured by photorefractometer with no cycloplegia. Strabismuswas checked by cover test and EOM functions testing. Direct ophthalmoscope was used for observing anterior segment, lens opacities, Red-Reflex and fundus. 90 students were referred to Imam Hossein Medical Center to compare autorefraction (+/- cycloplegia) results with photorefraction.

Results:

Amblyopia was found in 2.3% of cases (VA≤20/40) with no difference between two genders but higher in younger ages. The prevalence rates of hyperopia≥+2.00D, myopia≤-0.50D, astigmatism≥0.75D and anisometropia (SE difference≥1.00D) were 3.5%, 4.9%, 22.7% and 3.9%, respectively. By increasing age, hyperopia decreased, myopia increased and astigmatism remained same. Strabismus was found in 2.3% of cases. Strabismus, anisometropia and hyperopia were important amblyopicrisk factors in our study.

Conclusion:

High amblyopia prevalence of 2.3% in our primary school children revealthe necessity of applying preventive and effective treatments, on-time screening with more sensitive methods for early detection and treatment seems essential for this purpose.

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