The user needs help to place the mascara brush between her index and long fingers with her hand in a fist so that the brush stands at a right angle to her palm. User begins with the broad side of the mascara brush, then she takes the tip. She leans her hand against her cheek to hold it steady. She uses her other hand to hold on to the backrest to keep her balance. She applies mascara to her left eye with her left hand and switches hands for her right eye. She uses a cotton swab to remove any excess or smudges.
It was very important for the user to be able to apply make-up independently. She thought about it for a long time until she came up with the solution.
This tip is from 2007