Static perimetry in the study of amblyopic scotomata.

A visual field study of 50 cases of unilateral functional amblyopia revealed a relative central scotoma of 2-10 degrees width and 0.1 to 0.8 LU (log units of neutral density filters) depth in 29 out of 50 cases by static perimetry, while kinetic perimetry revealed a central scotoma in only 3 cases of paramacular fixation. In the majority of cases the eccentric area of fixation lay on the edge of the amblyopic scotoma, and it was identical to the point of peak retinal sensitivity.