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Title

NONINVASIVE EVALUATION OF HEALTHY HUMAN CHOROIDS AND SCLERA EYE MAXIMUM FRACTIONAL STRAIN BY ULTRASOUND IMAGING

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Abstract

 Introduction: In this study، Noninvasive, method for estimated human eye maximum fractional strain with ultrasound imaging has proposed. Material & methods: for estimation elasticity of eye tissue spatial loading system designed and external stress (2614146 Pascal) less than intraocular pressures of eye applied. Ultrasound images of B-mode taken before and after applying stress. After image processing choroids and sclera thickness before and after applying stress was measured.Results: results show that elastic parameters of choroids and sclera (0/200/07) have good correlation with the invasive studies (0/170/02).Conclusion: The elastic properties of the choroidal complex may be relevant to the pathogenesis of a variety of ocular diseases, including macular degeneration, Retinoschisis, Scleral spur, angiod streaks, choroidal folds.

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