نتایج جستجو برای: eye strain

تعداد نتایج: 373305  

2008
J. A. Bisplinghoff C. McNally I. P. Herring F. T. Brozoski S. M. Duma

Over 1.9 million people suffer from eye injuries in the United States each year, occurring mainly from automobile accidents, sports related impacts, and military combat. A common injury prediction tool used for eye injuries is computational modeling, which requires accurate material properties to produce reliable results. The purpose of this study is to create a high rate pressurization system ...

Journal: :Investigative ophthalmology & visual science 2017
Jonathan B Lin Blair W Gerratt Carl J Bassi Rajendra S Apte

Purpose The purpose of this study was to determine whether subjects who wear short wavelength-blocking eyeglasses during computer tasks exhibit less visual fatigue and report fewer symptoms of visual discomfort than subjects wearing eyeglasses with clear lenses. Methods A total of 36 healthy subjects (20 male; 16 female) was randomized to wearing no-block, low-blocking, or high-blocking eyegl...

حسن‌زاده, جواد, زرین, محمدرضا, جباروند, محمود , جعفرزاده, ابراهیم , مختاری دیزجی, منیژه ,

    Although cataract is very common and its detection seems apparently easy especially in the mature cataract, its quantitative description to determine the critical value of diagnosis is too difficult. Non-invasive evaluation of the mechanical properties of eye is hampered by the absence of in-vivo methods for direct assessment of the axial length of eye, lens and cornea. In the present study...

Journal: :Transactions of the Optical Society 1920

Journal: :iranian journal of medical physics 0
maryam abolmasoomi m.sc.in medical physics, tehran university medical sciences, tehran, iran keykhosro keshavarzi assistant professor, medical physics dept., tehran university medical sciences, tehran, iran mehran nikkhou eye specialist, ophthalmology dept., milad hospital ebrahim jafarzadeh poor associate professor, medical physics dept., tehran university medical sciences, tehran, iran

introduction: until now, many models have been presented for optical study of the human eye. in recent years, surgery on the anterior section of the eye (such as cataract and photo-refractive surgery) has increased, so a study on the optics of the eye and evaluation of vision quality has become more important. material and methods: in this article, some of these models are considered. they incl...

Journal: :The Japanese journal of ergonomics 1993

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان 1387

به منظور مطالعه اثر باکتریهای محرک رشد گیاه بر عملکرد کمی و کیفی دو رقم برنج، آزمایشی به صورت فاکتوریل در قالب طرح بلوکهای کامل تصادفی در 4 تکرار در سال زراعی 1388 در مزرعه تحقیقاتی موسسه ی تحقیقات برنج کشور در استان گیلان به اجرا در آمد. در این تحقیق، عامل رقم در 2 سطح (هاشمی و خزر) و تلقیح بذر با باکتری محرک رشد در 8 سطح (p. fluorescents strain 93 , p. fluorescents strain 103, p.fluorescents ...

Journal: :Child development 2013
Elina Birmingham Tamara Meixner Grace Iarocci Christopher Kanan Daniel Smilek James W Tanaka

The strategies children employ to selectively attend to different parts of the face may reflect important developmental changes in facial emotion recognition. Using the Moving Window Technique (MWT), children aged 5-12 years and adults (N = 129) explored faces with a mouse-controlled window in an emotion recognition task. An age-related increase in attention to the left eye emerged at age 11-12...

Journal: :Mechanisms of Development 2004
Amit Singh Madhuri Kango-Singh Kwang-Wook Choi Y.Henry Sun

The teashirt (tsh) gene has dorso-ventral (DV) asymmetric functions in Drosophila eye development: promoting eye development in dorsal and suppressing eye development in ventral by Wingless mediated Homothorax (HTH) induction [Development 129 (2002) 4271]. We looked for DV spatial cues required by tsh for its asymmetric functions. The dorsal Iroquois-Complex (Iro-C) genes and Delta (Dl) are req...

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