Increased Ocular Pulse Amplitude Associated with Unilateral Dysgenesis of the Orbital Roof
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Published:2015-05-19
Issue:2
Volume:6
Page:158-163
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ISSN:1663-2699
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Container-title:Case Reports in Ophthalmology
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language:en
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Short-container-title:Case Rep Ophthalmol
Author:
Vira Ami Shah,Mahmoud Ashraf M.,Roberts Cynthia J.,Katz Steven E.
Abstract
Introduction: Two patients (one with neurofibromatosis type 1) presented with unilateral ocular pulsation. Methods: A CT scan of the orbits revealed extensive dysgenesis of the orbital roof with herniation of the frontal lobe into the orbit in both cases. PASCAL dynamic contour tonometry was performed. Results: The ipsilateral ocular pulse amplitude (OPA) was greater than the contralateral side, and the ocular pulse waveform morphology more closely approximated the known intracranial waveform in these patients. Conclusions: We hypothesize that the greater OPA was due to stronger transmission of the intracranial pressure waveform amplitude and morphology in the absence of the orbital roof.