April 2011
Volume 52, Issue 14
Free
ARVO Annual Meeting Abstract  |   April 2011
Enhanced Depth Imaging Optical Coherence Tomography of Deep Optic Nerve Complex Structures in High Myopia Compared to Low Myopia
Author Affiliations & Notes
  • Joseph T. Nezgoda
    The Einhorn Clinical Research Center, New York Eye & Ear Infirmary, New York, New York
  • Sung Chul Park
    The Einhorn Clinical Research Center, New York Eye & Ear Infirmary, New York, New York
    Ophthalmology, New York Medical College, Valhalla, New York
  • Saman Kiumehr
    The Einhorn Clinical Research Center, New York Eye & Ear Infirmary, New York, New York
  • Christopher C. Teng
    The Einhorn Clinical Research Center, New York Eye & Ear Infirmary, New York, New York
    Ophthalmology, New York Medical College, Valhalla, New York
  • Celso Tello
    The Einhorn Clinical Research Center, New York Eye & Ear Infirmary, New York, New York
    Ophthalmology, New York Medical College, Valhalla, New York
  • Jeffrey M. Liebmann
    Ophthalmology, NYU School of Medicine, New York, New York
  • Robert Ritch
    The Einhorn Clinical Research Center, New York Eye & Ear Infirmary, New York, New York
    Ophthalmology, New York Medical College, Valhalla, New York
  • Footnotes
    Commercial Relationships  Joseph T. Nezgoda, None; Sung Chul Park, None; Saman Kiumehr, None; Christopher C. Teng, None; Celso Tello, None; Jeffrey M. Liebmann, Carl Zeiss Meditec, Inc. (F), Heidelberg Engineering GmBH (F), Optovue, Inc. (F, C), Topcon Medical System, Inc (F, C); Robert Ritch, Carl Zeiss Meditec, Inc. (F), Heidelberg Engineering GmBH (F), Topcon Medical System, Inc (F)
  • Footnotes
    Support  Joseph M. Cohen Research Fund of the New York Glaucoma Research Institute, New York, NY
Investigative Ophthalmology & Visual Science April 2011, Vol.52, 2195. doi:
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      Joseph T. Nezgoda, Sung Chul Park, Saman Kiumehr, Christopher C. Teng, Celso Tello, Jeffrey M. Liebmann, Robert Ritch; Enhanced Depth Imaging Optical Coherence Tomography of Deep Optic Nerve Complex Structures in High Myopia Compared to Low Myopia. Invest. Ophthalmol. Vis. Sci. 2011;52(14):2195.

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Abstract
 
Purpose:
 

To compare the enhanced depth imaging spectral-domain optical coherence tomography (EDI SD-OCT) findings of deep structures of the optic nerve complex (ONC: optic nerve head + peripapillary structures) in glaucoma between high and low myopia.

 
Methods:
 

Serial horizontal and vertical B-scan images (interval between images: approximately 30 µm) of the optic nerve head were obtained using EDI SD-OCT for both eyes of glaucoma subjects. Lamina cribrosa (LC), peripapillary retina, choroid and vessels, and subarachoid space around the optic nerve were evaluated and compared between eyes with high myopia (spherical equivalent [SE] refractive error <-6 D) and those with low myopia (SE refractive error between -3 and 0 D).

 
Results:
 

A total of 46 glaucoma subjects (92 eyes) were included (30 eyes with high myopia and 62 with low myopia). SE refractive error was -9.4±2.1 D in the high myopia and -1.2±0.6 D in the low myopia group (P<0.01). Visual field mean deviation was similar between the high and low myopia groups (-10.4±3.2 vs. -9.7±4.1 dB, P=0.4). Both short posterior ciliary arteries (SPCAs) and their branches (Fig A) and the LC (Fig B) were better visualized in the high myopia group. The subarachnoid space around the optic nerve was more frequently visualized (14/30 eyes [47%] vs 8/62 eyes [13%], P=0.01) and with better detail in the high myopia group (Fig C). Intrachoroidal cavitation or choroidal schisis (Fig D) and a focal full-thickness defect of the ocular wall (retina-choroid-sclera) (Fig E), both of which had been clinically overlooked or unrecognized, were found in 3 and 1 high myopic eyes, respectively, but not in low myopic eyes.

 
Conclusions:
 

Using EDI SD-OCT, deep ONC structures are better visualized in the eyes with high myopia than in those with low myopia. EDI SD-OCT is useful in detecting subclinical ONC abnormalities in high myopia.  

 
Keywords: imaging/image analysis: clinical • myopia • optic nerve 
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