The 1.0.2 version of CorticalPerimeter for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. CorticalPerimeter for Mac relates to Lifestyle Tools. The actual developer of this free Mac application is Nasanen And Raninen.
From the developer:
CorticalPerimeter is a software tool for the evaluation of contrast sensitivity of the visual field at very low cost, using ordinary computer displays or flat panel TV displays. Contrast sensitivity refers to the ability to see low contrasts, i.e., small differences in brightness. In addition, it is also possible to evaluate the Letter Contrast Sensitivity Function (LCSF) of central vision.
You may want to check out more software for Mac, such as SafeDog, ezManagerMax or Pulsphotometer, which might be similar to CorticalPerimeter.