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. Author manuscript; available in PMC: 2015 Oct 24.
Published in final edited form as: Adv Exp Med Biol. 2014;801:131–137. doi: 10.1007/978-1-4614-3209-8_17

Figure 2. Comparison of Traditional versus Novel Digital GVF Quantification.

Figure 2

Quantification of the total extent of peripheral fields, physiologic blind spot, and central scotoma were performed by a single observer in square centimeters (cm2) for the I4e, III4e, and IV4e isopters using digital planimetry and Adobe Photoshop for a 35-year-old female patient with Stargardt disease. The absolute differences between the two methodologies are shown in the table.