mVTx app for iPhone and iPad

"What is myVisionTrackX (mVTx)?
The mVTx application supports people living with eye conditions and their eyecare professionals. The app features are customized to the particular user, thereby enabling a personalized user experience.

mVTx is for use by the study participant to whom the application was prescribed as part of a clinical trial. If someone else completes any of the activities in your place, it could make your results inaccurate.

What happens if you post a user review on the app store?
If you post a user review, please note that your feedback will be shared with the study sponsor to decide if a safety report should be made to a regulatory authority in the USA, the UK, or any other country."