June 2013
Volume 54, Issue 15
Free
ARVO Annual Meeting Abstract  |   June 2013
Comparison of Retinal Nerve Riber Layer and Optic Disk Algorithms with Optical Coherence Tomography with 10 degree of head rotation
Author Affiliations & Notes
  • Rafael Castañeda Diez
    Glaucoma, Asociacion Para Evitar la Ceguera, Mexico City, Mexico
  • LUIS ZARATE
    Glaucoma, Asociacion Para Evitar la Ceguera, Mexico City, Mexico
  • Jesus Jimenez-Roman
    Glaucoma, Asociacion Para Evitar la Ceguera, Mexico City, Mexico
  • Footnotes
    Commercial Relationships Rafael Castañeda Diez, None; LUIS ZARATE, None; Jesus Jimenez-Roman, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science June 2013, Vol.54, 2282. doi:
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      Rafael Castañeda Diez, LUIS ZARATE, Jesus Jimenez-Roman, Structure in Glaucoma; Comparison of Retinal Nerve Riber Layer and Optic Disk Algorithms with Optical Coherence Tomography with 10 degree of head rotation. Invest. Ophthalmol. Vis. Sci. 2013;54(15):2282.

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

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Abstract

Purpose: To compare the performance of the retinal nerve fiber layer (RNFL) thickness and optic disk algorithms as determined by optical coherence tomography to detect structural changes when the patient accidentally rotate head.

Methods: Both eyes from 17 control subjects with visual acuity of > or =20/40, and no ocular pathologic condition. Observation procedures: Two optical coherence tomography algorithms were used: "fast RNFL thickness" and "fast optic disk." All procedure was made by the same observer.

Results: The average RNFL was 102.2 +/- 9.15 and 101.67 +/- 9.46 in the control and head rotation group, respectively. The average Rim area was 1.42 +/- 0.27 and 1.44 +/- 0.29 in the control and head rotation group, respectively. The average Disc area was 1.94 +/- 0.38 and 1.94 +/- 0.40 in the control and head rotation group, respectively. The average C/D Ratio was 0.4682 +/- 0.176 and 0.4626 +/- 0.177 in the control and head rotation group, respectively. The average Vertical C/D was 0.445 +/- 0.166 and 0.441 +/- 0.161 in the control and head rotation group, respectively. The average CUP Volume was 0.1588 +/- 0.155 and 0.1554 +/- 0.156 in the control and head rotation group, respectively. No statistical difference found in RNFL, RIM area, DISC area and Vertical C/D ratio; but found statistical difference in C/D Ratio and CUP Volume.

Conclusions: two of six algorithms present difference when the head is in rotation, it is important to watch the head of the patient during study, especially in elder people (like glaucoma patients).

Keywords: 610 nerve fiber layer • 629 optic nerve  
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