Case study | Eye Exam Application
Autonomous Distance Meter

My Role:
As the UX for this feature, I played a pivotal role in directing interaction design, overseeing usability testing, and conducting UI research.

Background:
The distance meter stands out as a critical component, crucial for users to achieve precise and accurate results.
The interaction with the distance metering and users is substantial, The examination hinges on pinpointing
the user's exact location from the screen, allowing the app to present precise sizes of unique targets.

The exam typically involves users adjusting their location around 30 times on average.
This highlights the dynamic and interactive essence of this crucial feature.

Mission and Challenges:

• The interface must be self-explanatory, minimizing the need for any learning curves.

• The UI should effectively convey when the user is far, close, or has reached a specific point.

• While engaged with the distance metering, the user does not wear glasses, resulting in a blurry eyesight during the process.

UX Process:
The research phase involves exploring the navigation landscape and examining various measuring applications.

Key Takeaways on Usability

Throughout the process, we conducted numerous usability tests with candidates visiting our office for the evaluations.

1. Users faced challenges determining the required direction, whether it be forward or backward, up or down.
2. Users encountered difficulty reaching the stopping point, as their movements were too fast and the gauge proved to be overly sensitive.

The Solution:
After an extensive UX research phase and exploring various distance metaphors through sketching,
the solution for the distance metering UI was derived from running numbers.
This approach successfully conveyed a sense of "you're almost there," eliciting immediate and positive reactions from users.