EpiGlare easily tests for glare sensitivity from most phoropters. While many other methods of glare testers suffer from inconsistent light intensity and angle, the EpiGlare offers a standardized, repeatable approach to measuring and documenting glare disability with best corrected vision. The EpiGlare line offers several advantages over existing solutions including: Integration with most manual phoropters so tests can be performed at the phoropter with best corrected vision. Tests night time glare, a key complaint of cataract patients. 9+ hours of battery life per charge and a spare battery in every kit eliminates the need to use valuable handles and charging wells. Smart power level indicator ensures every test is at the right power level. The EpiGlare comes in either a single or double glare attachment set.