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PURPOSE: To report an inter-eye difference of the ocular pulse amplitude (OPA) in a case of innominate steal syndrome, as measured by recording applanation tonometry. METHODS: OPA was measured in a 49-year-old male before and after percutaneous transluminal angioplasty of the innominate artery. RESULTS: Before dilation of the stenotic innominate artery, OPA was 2.00 (± 0.49) mmHg in the right and 3.46 (± 0.53) mmHg in the left eye. After dilation, OPA was 3.26 (± 0.51) mmHg in the right eye and 3.25 (± 0.99) mmHg in the left eye. CONCLUSION: Recording applanation tonometry may be useful for identifying occlusive disease of extracranial vessels in an office setting.
Dr. C. Kaufmann, Department of Ophthalmology, University Hospital, Zurich, Switzerland. claude.kaufmann@freesurf.ch