Table 1 Characteristics of visual field damage associated with LHON
Type of visual field damage | These cases (percent) of visual field damage in different stages | ||
|---|---|---|---|
Within 1 week | From 3 to 6 months | Over 6 months | |
Central scotoma | 26 (53.1 %) | 4 (8.2 %) | 2 (4.1 %) |
Paracentral scotoma | 12 (24.5 %) | 1 (2.0 %) | |
Blind spot enlargenment | 3 (6.1 %) | ||
Ceco-central scotoma | 6 (12.2 %) | 22 (44.9 %) | 3 (6.1 %) |
Diffuse defects | 7 (14.3 %) | 21 (42.9 %) | |
Central isopter constriction | 10 (20.4 %) | 18 (36.7 %) | |
Hemianopia or quadrantanopia | 2 (4.1 %) | 5 (10.2 %) | 5 (10.2 %) |