The Titmus Series is a family of premium vision screening instruments featuring a modern, sleek ergonomic design for patient comfort, standardized test illumination and an integrated foldable handle for ease of transport. Optional features include a vision screening software, electronic scoring of test results and a natural line of sight testing. All models in the iSeries family combine a variety of vision screening tests like visual acuity, binocularity, color and depth perception, muscle balance, astigmatism and peripheral vision to meet your vision screening requirements.