A test used to diagnose and manage diseases such as diabetic edema and glaucoma, by assessing the function of the macular (especially the retinal ganglion cell layer). It uses a grating pattern or reverse checkerboard that sustains a constant overall mean luminance over time. The normal pattern electroretinogram consists of two components namely, the positive component (P50) and the later negative component (N95).
Also Known As
- Pattern ERG