CIRRUS HD-OCT User Manual 2660021169012 Rev. A 2017-12Posterior Segment 8-23The screen allows editing the fovea location and navigating through the B-scans. Visuallyevaluate the image to determine if the segmentation lines are correctly finding the innerboundary of the Ganglion Cell layer and outer boundary of the Inner Plexiform Layer insuch cases.NOTE: The repeatability of GCA measurements is dependent upon consistent and accurateidentification of the fovea location. The system has an automatic fovea finder. Operatorsshould rigorously check that the software was able to find the fovea location and evaluateif the location is correct.cáÖìêÉ=UJNS=`çãé~êÉ=~=ÅÉåíÉêÉÇ=ÑçîÉ~=EäÉÑíF=ïáíÜ=~å=ìåÅÉåíÉêÉÇ=îáÉï=E~í=êáÖÜíFK=qÜÉ=ÅÉåíÉêÉÇ=ÑçîÉ~=ëÜçïë=~=ÅäÉ~ê=éáåéçáåí=~í=íÜÉ=ÅÉåíÉêK=^ë=ëççå=~ë=íÜÉ=ÑçîÉ~=áë=åç=äçåÖÉê=ÅÉåíÉêÉÇI=íÜÉ=ÅÉåíÉê=ÄÉÖáåë=íç=Éñé~åÇ=~åÇ=ÉäçåÖ~íÉKcáÖìêÉ=UJNT=fÑ=íÜÉ=ÑçîÉ~=áë=åçí=ÅÉåíÉêÉÇI=íÜÉ=î~äìÉë=Ñçê=íÜÉ=ãáåáãìã=íÜáÅâåÉëë=ïáää=ÄÉÖáå=íç=ÅÜ~åÖÉK=lÄëÉêîÉ=áå=íÜÉ=ÑáÖìêÉ=~ÄçîÉI=íÜ~í=íÜÉ=ãáåáãìã=lp=î~äìÉ=Ü~ë=ÅÜ~åÖÉÇ=Ñêçã=íÜÉ=EÅçêêÉÅíF=î~äìÉ=çÑ=RR=íç=~=î~äìÉ=çÑ=ON=~ë=íÜÉ=ÑçîÉ~=áë=ãçîÉÇ=Ñêçã=íÜÉ=ÅÉåíÉê=çÑ=îáÉïKIf it is determined that the location was not correct, the location should be manuallycorrected. Manually move the annulus location and associated circle placements to thecorrect location.Good Fovea Centering Bad Fovea CenteringCorrect Min Values Poor Min Value (OS)
