الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
In this study we found that 68.2% of the students have errors of refractions
And 31.8% are free without errors, Myopia represent 55.3% of the errors, hypermetropia represents 11.4% of the errors 51% of the students have astigmatism, We found also that 63.1% of students have a positive family history and 36,9% have negative family history 24.3% of the students have another eye diseases such as trachoma, allergic conjunctivitis, strabismus, amblyopia The most important significant risk factors positive family history.