The fundus movements are tracked while the patient gazes steadily at the fixation target.

Absolute or relative non-seeing areas within the visual field are accurately detected and delimited.

Projection of dynamic, structured and selectable targets of varying shape and size (standard Goldmann targets, operator-defined targets and bitmaps). Target number, target intensity, position strategies and fixation stimuli are other programmable features.

IR light is used to continuously monitor, in non-mydriatic conditions, the patient’s retina by a black & white camera. A programmable projection system allows to deliver modulated stimuli in the macular area. Patient responses to stimuli are collected and mapped.

The map of retinal sensitivity must feature accurate spatial correlation with the anatomical evidence, i.e. it is necessary to accurately track and record the eye movements to make sure that each and all stimuli are projected exactly onto the desired retinal location (re. Fundus-Related-Perimetry). To achieve this result, digital pictures are recorded each time a stimulus is being projected, used to estimate eye-movements and compensate for stimulus position (automatic eye tracking).

The automatic eye tracking system detects the patient‘s fixation position in time with high precision and speed (25 points/sec). MP-1 can therefore precisely measure fixation site and stability during the evolution of any pathology; it can detect variations in fixation by any cause and assist in planning surgery so to avoid damages in the area where fixation is located.

Most exam parameters are programmable: stimuli position, number, shape, colour and duration, background colour, fixation target shape, size, colour and position.

A non-mydriatic, digital, colour retinography can be considered the most suitable screening examination to be used in all those situations where retinal pathologies are suspected.

The follow-up function allows to automatically re-test the same patient exactly at the same locations and with the same conditions defined in any previous microperimetry exam. Accuracy and repeatability are the highest.

The purpose of the feedback exam is to train the patient to fixate at the target with a different portion of the retina than the one he/she is usually using (called the PRL, i.e. preferred retinal locus). The patient is asked to move his eye according to an audio feedback which tells him if he is getting closer or not to the desired final fixation position.