A Comparison of Keystone and Titmus Vision Screeners for Occupational Health Vision Testing
Comparing similarly priced Keystone and Titmus vision screening equipment, the Keystone VS-V vision screener and the Titmus i200 vision tester.
Tests. Both the Keystone and Titmus test: binocularity, acuity right, acuity left, depth perception, color perception and vertical balance.
Peripheral. The Keystone tests peripheral vision, the Titmus does not.
Night Vision. The Keystone tests for night vision.
Distances. Both the Keystone and the Titmus test at Far and Near distances. The Keystone also tests at two intermediate distances.
Remote Control. The Keystone operates with a remote control, the Titmus does not.
Head sensor. The Keystone automatically senses when the patients head is properly position, the Titmus does not.
Lamps. The Keystone utilizes long-lasting LED lamps while the Titmus uses flourescent lamps which provide a shorter life.
Portability. The Keystone weighs less than the Titmus. It is also much more compact and easier to carry.
Software. The Keystone can be upgraded to PC operation, the Titmus cannot.
The Keystone VS-V Standard vision screener costs about the same as the Titmus i200.
The Keystone performs more vision tests at more distances than Titmus.
The Keystone is easier to operate than Titmus with automatic, remote controls.
The Keystone vision tester is more portable: 40% lighter weight, 60% more compact than Titmus.
Only the Keystone can be upgraded to PC operation with built-in databasing capabilities.