I tell my pt's about that too...the Chicago river part Beth Koch COT, ROUB Retina Consultants of WNY bethkoch@xxxxxxxxxxxxx bkoch@xxxxxxxxxxxxx (716)908-4105 What we have done for ourselves, alone dies with us, What we do for others and the world remains and is immortal.... ~Albert Pike -----Original Message----- From: optimal-bounce@xxxxxxxxxxxxx [mailto:optimal-bounce@xxxxxxxxxxxxx] On Behalf Of Hamm, Chuck W. Sent: Friday, July 09, 2010 1:33 PM To: 'optimal@xxxxxxxxxxxxx' Subject: [optimal] Re: Vegetable Dye I try to simplify the explanation as "blood has components like red cells, white cells and clear fluid to carry them around", a concept most know as basic. "The dye we use stains the clear part and is photographed with filtered light" and I add as an aside "sometimes plumbers use the dye looking for leaks or people can follow water sources in caves" And, as we on OPTIMAL know, "it's used to make the river green for St Patrick's day." -----Original Message----- From: optimal-bounce@xxxxxxxxxxxxx [mailto:optimal-bounce@xxxxxxxxxxxxx] On Behalf Of sandor ferenczy Sent: Friday, July 09, 2010 12:24 PM To: optimal@xxxxxxxxxxxxx Subject: [optimal] Re: Vegetable Dye Over the years i have also found that simply telling patients that fluorescein sodium is a dye that ophthalmologists have been using since the early 1880s and injecting since the 1950s is enough to keep them fairly calm. -sandor On Fri, Jul 9, 2010 at 1:07 PM, <blutmancra@xxxxxxxxxxx> wrote: > Because it always that way since I started in this field. And the > patients it's a vegetable dye due to keep them calm during the test. > If you say the other it might make them nervous and you might get poor results. > > Brian > > Sent from my Verizon Wireless BlackBerry > > ________________________________