FIG. 3.
ERG results from rabbit eyes infected with isogenic E. faecalis strains differing in the expression of aggregation substance (Asa-1). Approximately 100 CFU of each strain were injected into the right eyes of New Zealand White rabbits at day 0. Surgical control left eyes were injected with sterile saline. Data at each postinfection day are presented as percentages of the B-wave amplitude retained compared to the baseline. Values and error bars represent means ± the standard errors of the means. Cyl+, cytolysin positive; Asa1+, aggregation substance wild type inducible; Asa1−, aggregation substance negative; Asa1c, aggregation substance constitutive. Eyes infected with isogenic, noncytolytic E. faecalis (•) were included in the present study for ERG comparisons only.