Push-up test

The push-up test is a two-step assessment of the lens dynamic performance to determine lens tightness:
1. The resistance to decentration is evaluated. For this the lens is gently dislodged by digital upward manipulation of the lower eyelid border against the lower edge of the contact lens.
2. When the pressure of the lower eyelid is removed type and speed of the recentration movement are judged.