Table 1.
Patient/Age, ya | Best-Corrected VA | Multifocal ERG Result | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
P1 Amplitude, nV/degree2 | P1 Implicit Time, ms | ||||||||||
Ring (1 + 2) | Ring 3 | Ring 4 | Ring 5 | Ring 6 | Ring (1 + 2) | Ring 3 | Ring 4 | Ring 5 | Ring 6 | ||
II-1/69 | 20/200 | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
III-1/38 | 20/20 | 19.3 | 6.4 | 5.1 | 4.7 | 3.5 | 33.3 | 34.2 | 36.7 | 37.5 | 39.2 |
III-2/36 | 20/30 | 10.3 | 5.3 | 4.5 | 3.5 | 1.7 | 33.3 | 40.0 | 43.3 | 43.3 | 41.7 |
III-3/34 | 20/20 | 51.1 | 25.5 | 13.4 | 8.3 | 6.4 | 30.0 | 30.8 | 31.7 | 35.0 | 35.8 |
Normal, mean (2 SDs)b | … | 32.0 (23.8) |
22.4 (14.5) |
18.2 (10.8) |
16.1 (9.1) |
15.7 (9.2) |
27.0 (3.0) |
26.2 (2.9) |
25.7 (2.9) |
25.9 (2.9) |
26.3 (3.0) |
Abbreviations: ellipses, not applicable; ERG, electroretinography; ND, nondetectable; VA, visual acuity.
At the time of the presented data.
Values at the Department of Clinical Sciences, Ophthalmology, Lund University, Lund, Sweden, among 30 eyes of 21 individuals (age range, 8–55 years [mean age, 38 years]).