FIG. 5.

Comparative retinal toxicity of the natural infection, metabolically inactive organisms, cell wall sacculi, and bacterial supernatants for the rabbit eye. ERG was performed at various times following midvitreal injection of the following preparations of B. cereus (A), E. faecalis (B), and S. aureus (C): live organisms (⧫), cell-free supernatant (●), metabolically inactive organisms (■), and sacculus preparations (▴). Values represent the mean ± SEM of the percent retinal responsiveness retained for ≥4 eyes per group. Individual data sets are designated by bracketed numbers that correspond to text in Results.