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Re-evaluation of the Irvine prism test

Tomac, S

Conference Object | 2001 | TRANSACTIONS: 27TH MEETING OF THE EUROPEAN STRABISMOLOGICAL ASSOCIATION , pp.377 - 380

introduction: To investigate the positive prism test response was due to the presence of suppression scotoma or the absence of bifoveolar fixation. Methods: Fifty-one patients with esotropia and twenty-two orthotropic subjects with anisometropic amblyopia were examined. The prism test was performed by using prisms different strengths and positions. The patients were also evaluated by the Bagolini striated glasses. Results: All the patients with esotropia showed a positive prism test response. In all the patients with anisometropic amblyopia and orthotropia, the prism test response was negative. Conclusions: In patients with microtro . . .pia, the positive response does not change to normal by using prisms of different sizes and positions. This indicates there is not a fixation point scotoma in patients with microtropia Daha fazlası Daha az

Clinical characteristics of microtropia

Tomac, S | Sener, EC | Sanac, AS

Conference Object | 2001 | TRANSACTIONS: 27TH MEETING OF THE EUROPEAN STRABISMOLOGICAL ASSOCIATION , pp.77 - 80

Introduction: To investigate clinical characteristics of microtropia. Methods: Twenty patients with primary microtropia were studied. Results: Irvine prism test was positive in all the patients by using prisms of different strengths and positions. All the patients had abnormal fusion at near. At distance, 15 patients had abnormal fusion by the BSG and 8 patients had abnormal fusion by the W4D. Ten patients had gross stereopsis and the rest had no measurable stereopsis. Conclusions: All patients with microtropia have abnormal fusion, which does not guarantee the presence of stereopsis. The difference in fuson between near and distanc . . .e is due to the weakness of fusion. With occlusion treatment, amblyopia can be improved, whereas binocular defects of microtropia can not be improved Daha fazlası Daha az

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