Visual Acuity, Post 3

Progress

This week I finished off the fixed head method of what i’m calling the Landolt V(virtual) test. Both test types are complete, and record data on the actual position of the C object plane (distance, and which direction the gap is pointed). I started to work on adding hand controls to the test, and building out the rest of the architecture so that this program can run in a standalone fashion outside of unity.

I also started to run tests on myself, and found a few interesting things. First, that the issue noticed in week one where the C began to render in an odd fashion doesn’t carry over into the fixed head position test. Furthermore, in that fixed head position, the C object can get much farther away from the viewer before becoming illegible (visually useless due to rendering). I’m curious to see how others interpret these findings, whether the C becomes illegible at shorter distances for others.

I’m also continuing research into validation. There’s a lot of ophthalmology stuff out there, but none of it directly translates to tests administered on screens, or really talks about validation of a Landolt C test.

Struggles

The vive setup in the dev lab was being particularly uncooperative this weekend, but aside from that and minor frustration as I continue to look for papers relevant to the topic of validating a Landolt C test, progress has been smooth.

Next Week

  • Talk with both Alex and Kevin, get some input on test and have others try it. Also discuss research and direction.
  • Make more progress and finishing out the structure of the application