Clinical ophthalmological studies in Germany back Clinical trials are an important part of ophthalmological research. At universities and numerous clinics, ophthalmologists conduct research on the effectiveness of drugs and therapies. This page shows the current scope of this research in Germany. The DOG would like to thank Prof. Dr. Daniel Böhringer, Freiburg, for his support in creating this page. This is a list of ophthalmology clinical trials registered on clinicaltrials.gov. If you are missing a trial, please send the relevant NCT number to email@example.com.