The lantern has been used since Dean Farnsworth first described it in 1946 for the testing the color signal discrimination ability of color anomalous individuals. This test has found longstanding application in the military and the transportation industry to qualify operators of ships vehicles and aircraft that are  known to have failed screening tests such as the Ishihara plates.

  Munsell color chips come in a plastic tube.  A pouch is included to protect the colors from fading.  Test can be inverted for easy grading.  The kit includes  a score sheet, a pair of cotton gloves, and a pair of "C" daylight glasses.

Up to 20 degree field of view. Portable (no external power or lighting) Non invasive and ergonomic. Eliminates corneal glare Built-in patient information file Review before and after treatment images. Screen anywhere and share.

      

       *Identifies and Quantifies Glare Disability

       *Open the Option for Early Surgical  Intervention and Quality of Life Improvement