 However, also strong variations even throughout the diurnal cycle, as well as the influence of optical stimuli during eye-growth indicate that the complex function of this tissue is not entirely understood and might be one of the reasons for the frequently found separation in vascular size between Haller's and Sattler's layer.Andrea Barberi

Andrea Barberi (born January 15, 1979) is an Italian sprint athlete who specializes in the 400 metres.He finished fifth at the 2006 European Athletics Championships and at the 2007 European Athletics Indoor Championships.