Multifocal ERG Guiding Therapy in a Case of Hydroxychloroquine Premaculopathy

Figure 2

Trace array of 61 individual mfERG responses and three-dimensional topography response density plot (below) performed at 4 months and (b) 34 months after hydroxychloroquine dose reduction. The follow-up with mfERG showed a generalized increase in response amplitudes, particularly of the central ring. (c) P1 amplitudes of the responses obtained in rings 1–3 in the first (shown in (a), red line) and last (shown in (b), blue line) mfERG performed. Hexagons with increments higher than 40% in the follow-up are marked (A–D). LE: left eye; m: months; N: nasal; RE: right eye; T: temporal.

(a)

(b)

(c)