Local Relationship between Global-Flash Multifocal Electroretinogram Optic Nerve Head Components and Visual Field Defects in Patients with Glaucoma

Figure 5

(a) Quadric curve of overlap. (b) Estimated overlap curve between total deviation and optic nerve head component ratios. When one area is fixed and the other area changes, the overlapping rate values necessarily demonstrate a negative quadric curve (a). The highest correspondence was between ONHC ratios <0.5 and TD <5%, ONHC ratio <0.3 and TD <3 or 4%, ONHC ratio <0.2 and TD <2 and 1%, and ONHC ratio <0.1 and TD <0.5% (b).

(a)

(b)