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Parity Challenge: Amplifies brightness sense imbalance, designed to small defects 0.3 or 0.6 log units  Can be used with any size defect.

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Parity Challenge is performed after the basic Amblyometer test (Brightness-Sense).

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Protocol for Amblyometer and Equalizer Games

1. With the Challenging Neutral Density filter over the RIGHT eye, Play the Amblyometer or Equalizer Game with RIGHT EYE filter dialed-in.

2. With the Challenging Neutral Density filter over the LEFT eye, Play the Amblyometer or Equalizer Game with LEFT EYE filter dialed-in.

3. Enter endpoints into automated calculator to see result