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[Psychogenic visual disturbances in children and adults. Ophthalmological, neurological and psychodynamic findings].

In large series of ophthalmic patients there may occasionally be some in whom the reduction of visual acuity cannot be explained by organic findings. In such patients simulation is suspected. However, simulation is not the only cause of decreased visual acuity and a lack of organic pathologic findings. It is obvious that all efforts must be made to exclude organic changes as the cause of decreased visual acuity. With modern diagnostic modalities this is possible to a large extent. If there are no organic pathologic findings, a psychiatric exploration is indicated. In the eight patients presented in this paper the reduction of visual acuity was the expression of a psychologic conflict situation. The cases are described in detail and the difference between simulation and a psychogenic decrease of visual acuity is pointed out.