Original Article

Stereoacuity in Patients with Schizophrenia - Original Article


  • Aykut Arslan Yıldız
  • Zeliha Yazar
  • Hüseyin Oğuz

Received Date: 13.01.2009 Accepted Date: 22.03.2010 Turk J Ophthalmol 2010;40(3):176-178


To evaluate stereoacuity in patients with schizophrenia.

Material and Method:

45 cases that had a visual acuity of 10/10 and a diagnosis of schizophrenia were included in the study; uncommunicative patients were excluded. Control group was formed of 45 healthy individuals of the same age and sex with the patients. Titmus test was performed in both groups at a distance of 16 inches (405 mm) with polarized spectacles. T-test was used for statistical evaluation.


Sex distribution of the cases was 35\10 (M\F), with a mean age of 34.7±1.0 years. Stereoacuity was 46.2±1.1 arc sec in the patient group, while it was 41.5±0.5 arc sec in the control group (p=0.001). The mean stereoacuity of the patients with visual hallucinations was 52.7±1.9, while it was 44.5±2.0 (p=0.02) in the patients who had no visual hallucination. There was no statistically significant difference between treated and untreated patients.


Stereoacuity was found to be decreased in patients with schizophrenia, especially who had visual hallucinations, when compared with healthy individuals of the same age.

Keywords: Schizophrenia, stereoacuity, titmus test

Full Text (Turkish)