We also located the randomised controlled trial in the Science and Social Science Citation Index and checked the list of studies citing the paper. Any potentially relevant titles and abstracts were examined and full papers obtained where necessary. We received responses for 76 of the 100 papers.Two reviewers used a standard form to extract data from each “case” that is, the randomised controlled trial and any qualitative studies.

By Zeiss, these goggles include two lenses to accommodate ever changing riding conditions. By Zeiss, these goggles include two lenses to accommodate ever changing riding conditions. With a SnapShot Magnetic Lens Interchange System, the Contact goggles offer a quick, easy way to change your lenses so you’re back in action faster than before!FEATURES:Great for snowboarders and skiers alikeLarge, adult sized framesSnapShot Magnetic Lens Interchange System provides a quick, easy way to swap out your lensSnapShot Technology utilizes a shutter button release and locking mechanism for on the fly lens interchangeSecure locking mechanism keeps your lens in place EVAK Vent Technology with ultra durable, non absorbent foam materialEVAK Vent Technology helps to prevent fog and creates a protective barrier from outside elementsExpansion View (EXV) technology delivers an unmatched field of view and peripheral visionEXV frameless design to optimize a massive spherical lensAnti fog treatment for crystal clear vision Triple layer face foam with microfleece facing for comfort and supportSeamless compatibility with all Giro helmets For optimal performance, Giro products are designed to work togetherIncludes bonus lens for changing conditionsIncludes carrying case and extra lens sleeve for convenience LENS:Features Toric VIVID lenses with Optics by ZEISS for enhanced contrast and definitionVIVID reduces eyestrain, improves reaction time and delivers precise visionInjection molded lens mimic the form of the human eye for superior opticsUse spec chart to determine VLT (Visible Light Transmission) Range and Recommended Conditions for main and bonus lens colors read more.

And evidence does abound that children were more than slaves to their parents, who provided them with playthings and, apparently, the time to play with them. Children’s toys of that era included tops, hoops, rattles, pull toys, and knucklebones (animal bones used to play games similar to dice). Girls played with dolls or miniature furniture; boys with carts and toy chariots.