Using 640X480 is the best resolution for taking images and importing images. Other resolutions can be used but should be multiples of 640X480, for example, 1280X960, 2560X1920. If resolution is not multiples of the standard 640X480, there is the possibility of incorrect compression of images leading to oval-horizontal pupil and false positives. To understand more about correct image resolutions, please refer to the sample chart below:

The iridology analysis software was developed for windows PC. We are not aware of any iridology analysis software programs that will work on MAC O.S. However, we do have a few members who have installed virtual machine on their MAC to install windows O.S. and successfully using the iridology software. Installing virtual machines can be complex for most users, although, there is software such as parallels virtual machine for mac. More information can be found here: For users who are more tech savvy, there are methods to install virtual machine for free. Learn more from this link: Another option is to purchase a used PC for around 100.00 for using the iridology software exclusively. A small price to pay for accessing iridodiagnostic software that can accurately detect and report on pupillary and collarette anomalies!