VF criteria for paracentral scotoma and peripheral nasal step

The isolated paracentral scotoma and the isolated peripheral nasal step groups were established by a glaucoma specialist (K. I. J.) on the basis of pattern deviation probability plots acquired from the 24-2 perimetry. Paracentral scotoma subjects displayed isolated glaucomatous VF loss within 12 points of a central 10° of fixation in 1 hemifield (Fig. 1), while peripheral nasal step subjects presented isolated glaucomatous VF loss within the nasal periphery outside 10° of fixation in 1 hemifield. Glaucoma patients with both paracentral scotoma and peripheral nasal scotoma were assigned to the paracentral scotoma and peripheral nasal scotoma group.

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