SUMMARY
Sequentially to studies which aim to obtain conjugate ocular rotations, in cases of absence of forces of muscular contraction, different possibilities of arrangements of magnetic elements and of conditions for their displacements are analyzed. The rotation of a fixed permanent magnet around an axis which separates its polarities, moving other magnets fixed to the ocular surface is one of the most convenient alternatives, due to the economy of spaces and to the simplicity of the model (rotations mechanically geared).
Key words:
Rotational artifacts; Oculomotor paralyses; Sliped muscles; Magnetic gearings; Magnetic fields