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Computerised Visual Fields (also known as Computerised Static Perimetry) of patients with PDS show relative and absolute scotomas which are not characteristic of any described pathological neurovisual pattern (Figure 3). Such relative and absolute scotomas are thought to be a consequence of a altered brain visual perception, and disappear with the proprioceptive treatment.

 

  

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Figure 3. Computerised Visual Fields/ Computerised Static Perimetry of two patients with PDS. Note the neurovisual pattern which is not characteristic of any known pathologies.