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Year : 2014  |  Volume : 107  |  Issue : 4  |  Page : 220-225

Prevalence of amblyopia among children attending primary schools during the amblyogenic period in Minia county

Department of Ophthalmology, Faculty of Medicine, Minia University, Minia city, Egypt

Correspondence Address:
Sahar T Abdelrazik
MD, Department of Ophthalmology, Minia University Hospital, Minia city 61111
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2090-0686.150657

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Introduction Amblyopia is one of the most important causes of visual impairments in young children; its incidence varies between 0.14 and 4.7%. An early diagnosis can enable optimal treatment. Illiteracy and poverty play a major role in preventing individuals from seeking medical advice, and we lack data on the prevalence of amblyopia in Upper Egypt, especially Minia county. Objective This study aimed to screen for amblyopia in students attending the governmental primary schools in Minia County during the amblyogenic period. Design A prospective observational cross sectional study was carried out between March and April 2010. Patients and methods Visual acuity and pen light ophthalmic examinations were performed for 1608 students (age range 7-9 years). Overall, 864 students were from urban areas and 744 were from rural areas. Children with defective vision were subjected to a full ophthalmic examination including slit lamp, orthoptic, and fundus examination in addition to cycloplegic refraction to detect the cause of reduced vision. Results Of the total number of participants, 14.49% had defective vision; 0.75% had organic causes (5.2% of the patients with defective vision), 12.25% had refractive errors (84.5% of the patients with defective vision), and 1.49% had amblyopia (10.3% of the patients with defective vision). The main cause of amblyopia was anisometropia (54.16%), followed by strabismus (25%), ametropia (12.5%), and finally deprivation (8.33%). Conclusion The prevalence of amblyopia in our study is 1.49%, which is higher in rural areas than in urban areas.

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