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PurposeTo highlight changing features over time within a single static image through the auto‐alignment and subtraction of serial optic nerve photographs.
MethodsSubtraction maps were generated from auto‐aligned (EyeIC, Narbeth, PA) baseline and follow‐up images using Adobe Photoshop software. They demonstrated progressive retinal nerve fibre layer (RNFL) defects, optic disc haemorrhage (DH), neuroretinal...
Glaucoma is a progressive optic neuropathy characterized by functional visual loss and underlying optic nerve deterioration. Optic nerve imaging, achieved using photography and scanning ophthalmic laser diagnostic imaging techniques, is an important aspect of glaucoma diagnosis and management. Alternation flicker is a technique in which serial optic nerve photographs, typically taken one or more years...
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