Designs For Vision offers an extensive range of trial lenses and frames, including the original Oculus Universal trial frames.
Oculus 42180 – Classic Universal Trial Frames
Black leight-weight metal/plastic for 5 pairs of lenses, independent right and left adjustment of PD (48 – 80mm). Bridge height and inclination operates by rack and pinion. Vertex Distance scale. Sides adjustable for length and angle, The low-set charnier allows for easy insertion of lenses into the rear lens cells.