If necessary we recommend cleaning your trial frames with a soft lint-free cloth only. To clean a heavily soiled trial frame you can use a damp cloth and a little household dishing-washing liquid. Never use alcohol, ether or similar solvents, ...

To mount the polarizing filter, insert the pin of the filter into the transverse borehole in the trial frame and push the pin in until it locks into the place the first time. This is the top position, and it ...

Yes, polarizing filters are always optionally available. Those for the UB 6 have a clip for easy mounting, while those for the UB 4 and UB 5 are to be directly slipped onto the trial frame. Polarizing filters with a ...

Yes, all components of every one of our Universal Trial Frames are assembled manually with great precision. Here too, we stay true to our quality claim: Made in Germany – made by OCULUS.

Yes, all spare parts are available. Please contact the distributor from whom you bought your trial frame.

The UB 5 was developed for small heads, which means that it will fit many adults as well, especially among the elderly. It has a PD range of 40-72 mm. In order to achieve such low PD values without changing ...

Universal Trial Frames UB 3/UB 3+, UB 4 and UB 6 are all suitable for any trial lens conforming to DIN EN ISO 9801 and having a rim diameter of 38 mm, such as a OCULUS “tl” trial lens. However, ...