نتایج جستجو برای: asthenopia

تعداد نتایج: 393  

Journal: :Journal of human ergology 2004
Faisal Basrai Fereydoun Aghazadeh

A study was conducted to determine the effects of VDT monitor positions and the use of single vision versus bifocal glasses on somatic elements in the data entry task. Eight male subjects performed data entry using a word processor in eight half-hour sessions with the four different monitor placements, i.e. "eye-level", "shoulder-level-front", "shoulder-level-side", and "sunken-level", wearing ...

Journal: :Work 2012
Cheikh El-Bachir Tebboune Bouhafs Mebarki

A cross-sectional study was carried out on a sample of 26 VDU operators in a post office and a bank, working regularly on video display units. The study aimed at (1) determining the physical working conditions, particularly lighting conditions, (2) assessing employees' complaints, (3) measuring visual defects among operators in VDU workstations. The following results are revealed: (a) ergonomic...

Journal: :East African medical journal 2010
M J Karoney S K Mburu D W Ndegwa A G Nyaichowa E B Odera

BACKGROUND Awareness of effects of long term use of computer and application of ergonomics in the computer workstation is important for preventing musculoskeletal disorders, eyestrain and psychosocial effects. OBJECTIVES To determine the awareness of physical and psychological effects of prolonged computer usage and application of ergonomicsin the workstation. DESIGN One hundred and eighty ...

Journal: :International Journal of Research in Ayurveda and Pharmacy 2018

2012
Joseph A. Pruitt Pauline Ilsen

The cause of the weakness is due to a defect at the level of the neuromuscular junction in which autoimmune antibodies block the receptors responsible for initiating muscular contraction. The neurotransmitter that is subject to this competitive inhibition is acetylcholine (ACh). The muscles commonly affected include those of the neck, limbs and chest cavity with regards to breathing. The muscle...

Journal: :Jurnal Kesehatan Bakti Tunas Husada 2021

Computer Vision Syndrome (CVS) adalah suatu kumpulan gejala yang berhubungan dengan mata di sebabkan karena penggunaan komputer. Tujan penelitian ini untuk mengetahui dialami oleh karyawan menggunakan komputer salah satu kantor BUMN sektor keuangan Kota Tasikmalaya. Penelitian merupakan observasional metode deskriptif, yaitu mendapatkan gambaran data mengenai CVS. lakukan pada bulan April-Mei 2...

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