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1. Intracellular recordings were made from the retinula units of the cricket Nemobius sylvestris. The half width of the angular sensitivity function was estimated at 4,4 degrees. This mean acceptance angle is slightly smaller than the interommatidial angle. In these conditions of light adapted state and for ommatidia of the central eye region, an… (More)
The authors present the results of multilateral orthoptic examinations performed in 72 persons who suffered an injury to the head. They present the signs of a "subjective posttraumatic syndrome". The patients have been divided into 3 groups in dependence of the severity of the trauma. The first group (light injuries) did not show any substantial changes,… (More)
Orthoptic treatment of accommodative strabismus is difficult because of variability of deviation and neutralisation. In first, the treatment of synoptophoria is practised more easily. It is often completed by optic treatment and medical treatment.