This program provides an automated detection of metamorphopsia and the follow-up of their evolution. The test is similar to a perimetry test. Local patterned stimuli are presented in a pseudo random sequence and the patient task is to indicate whether the pattern is distorted or not. The test duration is about 150 seconds including controls for attention and fixation errors.
These systems include a built-in fixation monitoring device.
A standard PC operating under Windows is used for the control of the instrument as well as for the storage and printout of results.
The program provides a standardized report including a map of probability of altered locations and the total percentage of locations with alterations.
The program allows the comparison of the metamorphopsia with the eye fundus.
The image of the eye fundus is imported as an image file either through the computer network or by USB key, CDROM etc. The operator identifies by a simple click the position of the fovea and papilla and the program automatically performs the scaling and repositioning the eye fundus image.