March 2012
Volume 53, Issue 14
ARVO Annual Meeting Abstract  |   March 2012
Optical Coherence Tomography Findings In Acute And Chronic Retinal Artery Occlusion
Author Affiliations & Notes
  • Giacomo Panozzo
    Fondazione Theia per l'Oftalmologia, Verona, Italy
  • Stefano Casati
    Neuroscience, University of Verona, Verona, Italy
  • Elena Gusson
    Clinica Oculistica, Universita di Verona, Verona, Italy
  • Footnotes
    Commercial Relationships  Giacomo Panozzo, None; Stefano Casati, None; Elena Gusson, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science March 2012, Vol.53, 970. doi:
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      Giacomo Panozzo, Stefano Casati, Elena Gusson; Optical Coherence Tomography Findings In Acute And Chronic Retinal Artery Occlusion. Invest. Ophthalmol. Vis. Sci. 2012;53(14):970.

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      © ARVO (1962-2015); The Authors (2016-present)

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Purpose: : To report spectral domain optical coherence tomography (SD-OCT) findings in acute and chronic retinal artery occlusions (RAO), and to compare these findings with other causes of inner retinal atrophy.

Methods: : Two cases of central retinal artery occlusion (CRAO) with perfused cilio-retinal artery and one case of cilio-retinal artery occlusion were observed in the acute phase and then followed for four months with SD-OCT. Other 4 cases of chronic central and branch RAO were also evaluated. SD-OCT images of different causes of inner retinal atrophy (advanced glaucoma and ischemic optic neuropathy) are reported and compared.

Results: : In the acute phase of RAO, SD-OCT discloses thickening and increased reflectivity of the inner retinal layers with shadowing effect on outer structures, and sharp demarcation between perfused and non-perfused retina. In the chronic phase, SD-OCT reveals severe and complete inner retinal atrophy and homogeneous intra-retinal structure, while outer nuclear layer and IS-OS/RPE hyper-reflective lines remain intact. On the contrary, in advanced glaucoma and optic neuropathy the inner retinal structure although reduced remains clearly detectable.

Conclusions: : SD-OCT in acute-CRAO demonstrates swelling of the inner retinal layers and sharp demarcation of the affected. In the chronic phases the homogeneous inner atrophy with absence of identifiable retinal layers represents a distinctive marker of RAO compared with other causes of inner retinal atrophy.

Keywords: vascular occlusion/vascular occlusive disease • imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound) • retina: proximal (bipolar, amacrine, and ganglion cells) 

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