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Gray Optic Disc Crescent: Evaluation of Anatomic Correlate by Spectral-Domain OCT.

Publication ,  Journal Article
Davies, IJ; Muir, KW; Halabis, JA; Stinnett, SS; Allingham, RR; Shields, MB
Published in: Ophthalmol Glaucoma
2019

PURPOSE: To test the hypothesis that the anatomic correlate of the gray optic disc crescent is pigmentation of externally oblique border tissue of Elschnig. DESIGN: Retrospective study. PARTICIPANTS: African-American adult men with or without clinically apparent gray optic disc crescents. METHODS: McNemar's test for paired data and kappa statistic with 95% confidence intervals were used to examine the relationships between eyes with or without gray optic disc crescents and corresponding spectral-domain (SD) OCT images with enhanced depth imaging (EDI). MAIN OUTCOME MEASURES: Correlation between clinical gray optic disc crescents and hyperreflectivity of externally oblique border tissue of Elschnig by SD OCT with EDI. RESULTS: Twenty-five eyes had clinically apparent gray optic disc crescents, of which SD OCT with EDI revealed hyperreflectivity (interpreted as increased pigmentation) of externally oblique (obtuse angle) border tissue of Elschnig in 22 eyes, that is, extending into Bruch's membrane opening and presumably visible by funduscopy. Thirty-two eyes from matched participants had no apparent gray optic disc crescent, of which SD OCT with EDI revealed hyperreflectivity of the border tissue of Elschnig in 23 eyes, but with a nonoblique (right angle) or internal (acute angle) angle, which would presumably obstruct funduscopic visualization. CONCLUSIONS: Observations by SD OCT with EDI suggest that the anatomic correlate of the gray optic disc crescent is pigmentation of externally oblique border tissue of Elschnig.

Duke Scholars

Published In

Ophthalmol Glaucoma

DOI

EISSN

2589-4196

Publication Date

2019

Volume

2

Issue

2

Start / End Page

120 / 125

Location

United States

Related Subject Headings

  • Visual Fields
  • Tomography, Optical Coherence
  • Retrospective Studies
  • Optic Nerve Diseases
  • Optic Disk
  • Middle Aged
  • Male
  • Intraocular Pressure
  • Image Enhancement
  • Humans
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Davies, I. J., Muir, K. W., Halabis, J. A., Stinnett, S. S., Allingham, R. R., & Shields, M. B. (2019). Gray Optic Disc Crescent: Evaluation of Anatomic Correlate by Spectral-Domain OCT. Ophthalmol Glaucoma, 2(2), 120–125. https://doi.org/10.1016/j.ogla.2018.11.005
Davies, Isaiah J., Kelly W. Muir, Joseph A. Halabis, Sandra S. Stinnett, R Rand Allingham, and M Bruce Shields. “Gray Optic Disc Crescent: Evaluation of Anatomic Correlate by Spectral-Domain OCT.Ophthalmol Glaucoma 2, no. 2 (2019): 120–25. https://doi.org/10.1016/j.ogla.2018.11.005.
Davies IJ, Muir KW, Halabis JA, Stinnett SS, Allingham RR, Shields MB. Gray Optic Disc Crescent: Evaluation of Anatomic Correlate by Spectral-Domain OCT. Ophthalmol Glaucoma. 2019;2(2):120–5.
Davies, Isaiah J., et al. “Gray Optic Disc Crescent: Evaluation of Anatomic Correlate by Spectral-Domain OCT.Ophthalmol Glaucoma, vol. 2, no. 2, 2019, pp. 120–25. Pubmed, doi:10.1016/j.ogla.2018.11.005.
Davies IJ, Muir KW, Halabis JA, Stinnett SS, Allingham RR, Shields MB. Gray Optic Disc Crescent: Evaluation of Anatomic Correlate by Spectral-Domain OCT. Ophthalmol Glaucoma. 2019;2(2):120–125.
Journal cover image

Published In

Ophthalmol Glaucoma

DOI

EISSN

2589-4196

Publication Date

2019

Volume

2

Issue

2

Start / End Page

120 / 125

Location

United States

Related Subject Headings

  • Visual Fields
  • Tomography, Optical Coherence
  • Retrospective Studies
  • Optic Nerve Diseases
  • Optic Disk
  • Middle Aged
  • Male
  • Intraocular Pressure
  • Image Enhancement
  • Humans