In a word, everything. The Ultra Series from Marco changes the slit-lamp picture forever. First, we incorporated the very latest in materials, design and lens-coating technologies to create a new era in optical resolution and efciency. Then we improved the ergonomics to make the Ultra Series the most convenient-to-use slit lamps in the industry. Finally, we designed the Ultra Series to be manufactured using up-to-the-minute production techniques, reducing assemblies that used to require as many as fteen parts down to one single part. The result is higher quality, reduced maintenance and exceptional value.