In vivo morphologic characteristics of Salzmann nodular degeneration with ultra-high-resolution optical coherence tomography

Volkan Hurmeric, Sonia H Yoo, Carol Karp, Anat Galor, Lejla Vajzovic, Jianhua Wang, Sander Dubovy, Richard Forster

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Abstract

Purpose To examine the in vivo morphologic properties of Salzmann nodular degeneration with ultra-high-resolution optical coherence tomography (OCT). Design Interventional case series. Methods setting: Single-center academic practice. study population: Nineteen eyes of 12 patients with Salzmann nodular degeneration were recruited to participate in the study. observational procedure: Subjects were imaged using novel, custom-built ultra-high-resolution OCT. Images were used to describe in vivo characteristics of subepithelial nodules. Morphometric measurements were made with custom-built software. Ultra-high-resolution OCT findings were compared with histopathologic findings in 3 patients. main outcome measures: Identifiable in vivo morphologic characteristics of Salzmann nodular degeneration with ultra-high-resolution OCT. Results Ultra-high-resolution OCT images demonstrate intraepithelial fibrous nodules with epithelial thinning and corneal surface elevation. The Bowman layer could be differentiated in 9 of 12 patients. The difference between the mean thickness of epithelium above the nodule and the thickness of normal epithelium was statistically significant (P < .0001). The correlation between thickness of the epithelium and thickness of the nodule was statistically significant (r = -0.48; P < .0001). The correlation between thickness of the nodule and total surface thickness (thickness of the epithelium + thickness of the nodule) was statistically significant (r = 0.98; P < .0001). Ultra-high-resolution OCT findings were consistent with histopathologic results. Conclusions Ultra-high-resolution OCT can be used to noninvasively image the cornea in Salzmann nodular degeneration. This new imaging technique helps us to demonstrate different in vivo morphologic characteristics of Salzmann nodular degeneration.

Original languageEnglish
JournalAmerican Journal of Ophthalmology
Volume151
Issue number2
DOIs
StatePublished - Feb 1 2011

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Optical Coherence Tomography
Epithelium
Cornea
Software
Outcome Assessment (Health Care)
Population

ASJC Scopus subject areas

  • Ophthalmology

Cite this

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title = "In vivo morphologic characteristics of Salzmann nodular degeneration with ultra-high-resolution optical coherence tomography",
abstract = "Purpose To examine the in vivo morphologic properties of Salzmann nodular degeneration with ultra-high-resolution optical coherence tomography (OCT). Design Interventional case series. Methods setting: Single-center academic practice. study population: Nineteen eyes of 12 patients with Salzmann nodular degeneration were recruited to participate in the study. observational procedure: Subjects were imaged using novel, custom-built ultra-high-resolution OCT. Images were used to describe in vivo characteristics of subepithelial nodules. Morphometric measurements were made with custom-built software. Ultra-high-resolution OCT findings were compared with histopathologic findings in 3 patients. main outcome measures: Identifiable in vivo morphologic characteristics of Salzmann nodular degeneration with ultra-high-resolution OCT. Results Ultra-high-resolution OCT images demonstrate intraepithelial fibrous nodules with epithelial thinning and corneal surface elevation. The Bowman layer could be differentiated in 9 of 12 patients. The difference between the mean thickness of epithelium above the nodule and the thickness of normal epithelium was statistically significant (P < .0001). The correlation between thickness of the epithelium and thickness of the nodule was statistically significant (r = -0.48; P < .0001). The correlation between thickness of the nodule and total surface thickness (thickness of the epithelium + thickness of the nodule) was statistically significant (r = 0.98; P < .0001). Ultra-high-resolution OCT findings were consistent with histopathologic results. Conclusions Ultra-high-resolution OCT can be used to noninvasively image the cornea in Salzmann nodular degeneration. This new imaging technique helps us to demonstrate different in vivo morphologic characteristics of Salzmann nodular degeneration.",
author = "Volkan Hurmeric and Yoo, {Sonia H} and Carol Karp and Anat Galor and Lejla Vajzovic and Jianhua Wang and Sander Dubovy and Richard Forster",
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AU - Yoo, Sonia H

AU - Karp, Carol

AU - Galor, Anat

AU - Vajzovic, Lejla

AU - Wang, Jianhua

AU - Dubovy, Sander

AU - Forster, Richard

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N2 - Purpose To examine the in vivo morphologic properties of Salzmann nodular degeneration with ultra-high-resolution optical coherence tomography (OCT). Design Interventional case series. Methods setting: Single-center academic practice. study population: Nineteen eyes of 12 patients with Salzmann nodular degeneration were recruited to participate in the study. observational procedure: Subjects were imaged using novel, custom-built ultra-high-resolution OCT. Images were used to describe in vivo characteristics of subepithelial nodules. Morphometric measurements were made with custom-built software. Ultra-high-resolution OCT findings were compared with histopathologic findings in 3 patients. main outcome measures: Identifiable in vivo morphologic characteristics of Salzmann nodular degeneration with ultra-high-resolution OCT. Results Ultra-high-resolution OCT images demonstrate intraepithelial fibrous nodules with epithelial thinning and corneal surface elevation. The Bowman layer could be differentiated in 9 of 12 patients. The difference between the mean thickness of epithelium above the nodule and the thickness of normal epithelium was statistically significant (P < .0001). The correlation between thickness of the epithelium and thickness of the nodule was statistically significant (r = -0.48; P < .0001). The correlation between thickness of the nodule and total surface thickness (thickness of the epithelium + thickness of the nodule) was statistically significant (r = 0.98; P < .0001). Ultra-high-resolution OCT findings were consistent with histopathologic results. Conclusions Ultra-high-resolution OCT can be used to noninvasively image the cornea in Salzmann nodular degeneration. This new imaging technique helps us to demonstrate different in vivo morphologic characteristics of Salzmann nodular degeneration.

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