[A variable pressure and distance impression funnel for fundus examination (author's transl)].

We describe a variable pressure and variable distance impression funnel for the Goldmann-3-mirror contact glass. The advantage of this apparatus lies in the possibility of denting the bulbus up to the equator for the diagnosis of holes while the retina is still attached. This funnel has proved itself especially in light coagulation through the contact glass with the slitlamp.