In this study we mimic the unique, transparent protective carapace (shell) of myodocopid ostracods, through which their compound eyes see, to demonstrate that ultrastructure also provides functions strength and protection for a relatively thin structure. The bulk window in large, pelagic cypridinid (Myodocopida) Macrocypridina castanea was mimicked using film deposition dielectric materials cre...

Introduction: Welders are an occupational group at high risk for eye injuries. The aim of this study was to investigate the state protection metal welders in workshops Conakry. Material and Methods: cross-sectional, descriptive, included 180 from 45 welding city Conakry a period three months. It involved all professionals working informal unit selected by who had agreed participate study. Resul...

purpose: dry eye syndrome is a multifactorial disorder of the tear film and ocular surface that results in eye discomfort, visual disturbance, and often ocular surface damage. studies suggest that the prevalence of clinically diagnosed dry eye syndrome (des) is 0.4%. to 0.5%, which is highest among women and the elderly. the burden of des can be substantial, affecting visual function, daily act...

in spite of rapid advances in keratorefractive surgery in recent decades, the most common method for refractive error correction throughout the world is glasses, the discovery of which is attributed to the persians. other advantages include protection of the eye against trauma and radiations, correction of phorias and tropias and cosmetic reasons. the purpose of this article is to describe and ...

Solar retinopathy is a retinal injury caused by direct or indirect sun-gazing and solar eclipse observation without protection. Subtle changes in the retinal damage might not be evident on fundus photography and fluorescein angiography. A 40-year-old veteran suffered from paracentral scotoma in his left eye shortly after unprotected solar eclipse observation about 1 month earlier. His visual ac...

The International Atomic Energy Agency (IAEA) safety requirements: 'General Safety Requirements Part 3--Radiation protection and safety of radiation sources: International Basic Safety Standards' (BSS) was approved by the IAEA Board of Governors at its meeting in September 2011, and was issued as General Safety Requirements Part 3 in July 2014. The equivalent dose limit for the lens of the eye ...