The<unk>  is a test used to test the invasiveness of enteroinvasive Escherichia coli, Shigella species, and Listeria monocytogenes. It is done by inoculating suspension of bacteria into guinea pig's eye. Severe mucopurulent conjunctivitis and severe keratitis indicates a positive test.
Sereny test
Mentzer index
Monoyer chart
Jaeger chart
Hill test
Holtzman inkblot technique
Ishihara test
Stenger test