Characterization of deeply embedded corneal foreign bodies with anterior segment optical coherence tomography

Armarnik, Sharon; Goldenberg, Dafna; Segev, Fani; Meshi, Amit; Segal, Ori; Geffen, Noa

doi:10.1007/s00417-019-04309-y

Cited by 20 publications

(26 citation statements)

References 12 publications

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“…FBs show high or low signals on AS-OCT images. High signals followed by a shadowing effect were reported in previous literature [5,14,18]. However, these studies ignored the phenomenon that the low signals could also be followed by a shadowing effect, which we named a marginal zone shadowing effect.…”

Section: Discussionmentioning

confidence: 84%

“…When the signal of the lesions was weaker than the surrounding tissue, it was a hyporeflective signal (low signal). The signal deep in the FB was weaker or even disappeared, which was regarded as signal attenuation and was called a shadowing effect [ 5 , 7 , 14 ].…”

Section: Methodsmentioning

confidence: 99%

“…Anterior segment OCT (AS-OCT) generates detailed images and digital information on the anterior segment, and it was widely used to assess the phenotypes of the anterior segment of the eye such as corneal thickness and anterior chamber [ 9 – 11 ]. There were several case reports of corneal FBs using AS-OCT [ 12 , 13 ] and observations of different corneal FB in vitro using AS-OCT [ 14 ]. However, no article indicates the diagnosis basis of cornea FB using AS-OCT.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Different Types of Corneal Foreign Bodies Using Anterior Segment Optical Coherence Tomography: A Prospective Observational Study

Wang

Zhong

Yin

et al. 2020

Journal of Ophthalmology

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Purpose. The present study highlighted the value of anterior segment optical coherence tomography (AS-OCT) for different types of corneal foreign bodies in humans. Methods. This study was a prospective observational study. The patients included were divided into two groups. If the patients were directly diagnosed based on eye injury history and slit-lamp examination, then they were assigned to Group A. Otherwise, the patients were assigned to Group B. We compared and described the characteristics of the corneal foreign body in both groups using AS-OCT. Results. From October 2017 to January 2020, 36 eyes of 36 patients (9 females and 27 males) with a mean age of 37.8 ± 11.7 years were included in the study. Patients in Group A were the majority and accounted for 72.2% (26/36). High signals on AS-OCT images were the main constituent and accounted for 92.3% (24/26) in Group A and 70.0% (7/10) in Group B. Most of the patients in Group A, 96.2% (25/26), had clear boundaries. A blurred boundary was observed in 70.0% (7/10) of the patients in Group B. The foreign bodies on AS-OCT images had key characteristics of a high signal followed by a central zone shadowing effect and a low signal followed by a marginal zone shadowing effect. Further, all of the lesions could be directly located in Group B, and 92.3% (24/26) of the patients in Group A did not have directly located lesions. Six representative cases are described in detail. Conclusions. AS-OCT is a valuable tool in the diagnosis and management of corneal foreign bodies, especially for unusual corneal foreign body.

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Section: Discussionmentioning

confidence: 84%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of Different Types of Corneal Foreign Bodies Using Anterior Segment Optical Coherence Tomography: A Prospective Observational Study

Wang

Zhong

Yin

et al. 2020

Journal of Ophthalmology

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show abstract

“… 15 In clinical situations where it is difficult to understand how deep into the cornea the foreign body has penetrated and whether or not there is full-thickness penetration, imaging modalities that facilitate determination of the type, size, and location of the corneal foreign body may be guiding in treatment, especially in cases that require surgery. 11 …”

Section: Discussionmentioning

confidence: 99%

“…10 Under certain conditions, foreign body type and depth cannot be clearly discerned on slit-lamp examination, and inappropriate interventions to remove deep corneal foreign bodies may result in corneal perforation. 11 …”

Section: Introductionmentioning

confidence: 99%