**5. Conclusions**

Several viral, parasitic, and bacterial pathogens form the major causes for infectious retinitis. Since the phenotype is not absolutely specific for the individual infection, specific diagnostic procedures focusing on the major pathogens and, in most cases, on nucleic acid amplification need to be used. Due to the individual pathogen, specific therapy is possible in many cases and increases the quality of the therapeutic outcome. Nevertheless, the current therapeutic results demand further development and improvement of the therapy of infectious retinitis.
