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. 2012 Oct 18;7(10):e47237. doi: 10.1371/journal.pone.0047237

Figure 2. Photomicrograph of a glaucomatous optic nerve head (staining: PAS).

Figure 2

Left: arrow #1 end of Bruch's membrane; arrow #2: beginning of choriocapillaris not occluded beneath Bruch's membrane; arrow #3: beginning retinal photoreceptors on Bruch's membrane; arrow #4: beginning of retinal pigment epithelium cells on Bruch's membrane. Right: higher magnification of beta zone; Black arrow: End of Bruch's membrane at the optic disc border; White arrow: open choriocapillaris; Red arrow: end of photoreceptor layer, choriocapillaris open.