Figure 4

OCTA and Color Fundus Photo of Drusen in Non-Neovascular AMD. The left eye of a 72 year old Caucasian man with non-neovascular age-related macular degeneration using the Angiovue optical coherence tomography angiography (OCTA) software of the RTVue XR Avanti (Optovue, Inc., Fremont, CA). (A) Color fundus photo zoomed in to an approximately 3 x 3 mm area centered at the macula showing hard and soft drusen. (B) 3 x 3 mm OCT angiogram of the choriocapillaris centered at the macula as in A. The green and red lines represent the x and y axis OCT b-scans respectively which cross at a soft druse demonstrating an area of decreased signal in the choriocapillaris underlying the druse. (C) 3 x 3 mm en-face structural OCT of the choriocapillaris centered at the macula as in A-B. This image was simultaneously obtained during the same scan as the OCT angiogram in B. This structural OCT is still able to show the choriocapillaris changes at the location of the soft drusen in B, but detail is overall limited. (D) Corresponding x axis OCT b-scan at the cross-section demonstrated by the green line in B showing the soft druse. The corresponding OCT b-scans were simultaneously obtained during the same scan as the OCT angiogram in B.