Bioptical training

See also the chapter "Training of Bioptical Vision"

Normal vision shows that the bioptical painting consists of two fields: A and B. Every detail of field A has a corresponding detail in field B, with certain linear and colour differences. It looks like a usual composition.

 When looking through the bioptical device, a third field (A+B) appears between the other two, as a psychophysical superposition. This happens because one eye perceives field A and the other eye perceives field B. Both field A and B may be observed, but bioptical effects are perceived only in the middle field (A+B), following the action of looking through the bioptical device.


 A bioptical device with a single peeping window: one eye looks through a pair of mirrors, the other one is naked. The device allows to observe bioptical effects in the center of the wide field painting and a global perception of the whole widefield composition is acquired.



 Bioptical paintings are displayed in the visitors reception hall of the Palace of Romania`s Parliament.


 The viewer looks through the peeping windows L and M.


 The viewer looks through the peeping windows R and M.

 LIVIU ILIESCU, Painting, oil on canvas 2.2x8 meters


 A painting of wide-range visual field, with a bioptical composition in its center. Pictorial elements on the borders induce a global visual perception to the viewer. These elements are landmarks meant to induce the viewer into the metavirtual space of the bioptical painting.


 The stand permits to place the bioptical device so as to suit a standing viewer.


 The stand permits to place the bioptical device so as to suit viewer seated on a chair or in an armchair.


 The viewer looks through the bioptical device mounted on the stand, contemplating the bioptical composition placed in the center of a wide field painting.
The viewer notices bioptical effects and experiences a global perception due to the composition elements placed at the extremities of the field.


 The bioptical device mounted on the stand which allows adjustment to suit the viewer`s height of the eyes.
Several devices equipped with stands are used in the exhibition; each device is used to contemplate one or at most three paintings. The bioptical device also has an axis of rotation.
The bioptical device is adjusted within the range of norms for the binocular vision, irrespective of its placement in the room.

 The bioptical device


 Three square peep windows are to be placed in front of the eyes.
L - the left-hand window, meant for the naked eye (without any intermediary optical elements)
M - the middle window, meant for the eye watching through two plane mirrors, to get the superposition of field A on field B, resulting in image (A+B)
R - the right-hand window, meant for the naked eye (without any intermediary optical elements).

To contemplate the bioptical painting, one looks first through windows L and M. After watching the bioptical effects, after a lapse of time depend on the viewer`s adaptation capacity a second stage follows, watching through windows M and R. Important reversals occur in bioptical effects, both in point of the space placement of elements and in the perception of colour combinations. Short-sighted viewers who usually wear spectacles should use them also in this case.