Detection of airbag impact-induced cone photoreceptor damage by adaptive optics scanning laser ophthalmoscopy: A case report

Yoshihiro Kaizu, shintaro nakao, Muneo Yamaguchi, yusuke murakami, Hani Salehi-Had, Tatsuro Ishibashi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Background: The purpose of this study was to report a case of traumatic maculopathy with para-central visual field defects following an impact by airbag deployment using adaptive optics scanning laser ophthalmoscopy (AO-SLO). Case presentation: A 51-year-old man was involved in a motor vehicular accident and his left eye was struck by the deployed airbag, resulting in a para-central scotoma. The patient underwent a full ophthalmologic examination, spectral-domain optical coherence tomography (SD-OCT), and imaging with prototype AO-SLO systems (Canon Inc.) at 14 and 22 months after the injury. Images focused on the photoreceptor layer were recorded in the foveal area, and a montage of AO-SLO images was created. On AO-SLO, focal dark areas could be observed in the left eye at 14 months after the injury. The analysis showed that the cone mosaic (cone density, 16503/mm2; ratio of hexagonal Voronoi domain, 36.3 %; average nearest-neighbor distance (NND)/expected NND, 0.606) was disordered compared with the normal area of the same eye (cone density, 24821/mm2; ratio of hexagonal Voronoi domain, 44.1 %; average NND/expected NND, 0.739). The cone defect area corresponded to the area of the scotoma. A second AO-SLO was performed on the patient at 22 months after the injury and although there were still areas with reduced cone reflectivity, partial improvement of cone mosaic was detected by AO-SLO at this time point. Conclusion: Partial recovery of damaged cone photoreceptors following closed globe blunt ocular trauma can be documented using AO-SLO longitudinal tracking.

Original languageEnglish
Article number99
JournalBMC Ophthalmology
Volume16
Issue number1
DOIs
Publication statusPublished - Jul 8 2016

Fingerprint

Air Bags
Retinal Cone Photoreceptor Cells
Ophthalmoscopy
Lasers
Scotoma
Wounds and Injuries
Optical Imaging
Optical Coherence Tomography
Visual Fields
Accidents

All Science Journal Classification (ASJC) codes

  • Ophthalmology

Cite this

Detection of airbag impact-induced cone photoreceptor damage by adaptive optics scanning laser ophthalmoscopy : A case report. / Kaizu, Yoshihiro; nakao, shintaro; Yamaguchi, Muneo; murakami, yusuke; Salehi-Had, Hani; Ishibashi, Tatsuro.

In: BMC Ophthalmology, Vol. 16, No. 1, 99, 08.07.2016.

Research output: Contribution to journalArticle

@article{e57e3ec8686e4f059c379646fe674d8a,
title = "Detection of airbag impact-induced cone photoreceptor damage by adaptive optics scanning laser ophthalmoscopy: A case report",
abstract = "Background: The purpose of this study was to report a case of traumatic maculopathy with para-central visual field defects following an impact by airbag deployment using adaptive optics scanning laser ophthalmoscopy (AO-SLO). Case presentation: A 51-year-old man was involved in a motor vehicular accident and his left eye was struck by the deployed airbag, resulting in a para-central scotoma. The patient underwent a full ophthalmologic examination, spectral-domain optical coherence tomography (SD-OCT), and imaging with prototype AO-SLO systems (Canon Inc.) at 14 and 22 months after the injury. Images focused on the photoreceptor layer were recorded in the foveal area, and a montage of AO-SLO images was created. On AO-SLO, focal dark areas could be observed in the left eye at 14 months after the injury. The analysis showed that the cone mosaic (cone density, 16503/mm2; ratio of hexagonal Voronoi domain, 36.3 {\%}; average nearest-neighbor distance (NND)/expected NND, 0.606) was disordered compared with the normal area of the same eye (cone density, 24821/mm2; ratio of hexagonal Voronoi domain, 44.1 {\%}; average NND/expected NND, 0.739). The cone defect area corresponded to the area of the scotoma. A second AO-SLO was performed on the patient at 22 months after the injury and although there were still areas with reduced cone reflectivity, partial improvement of cone mosaic was detected by AO-SLO at this time point. Conclusion: Partial recovery of damaged cone photoreceptors following closed globe blunt ocular trauma can be documented using AO-SLO longitudinal tracking.",
author = "Yoshihiro Kaizu and shintaro nakao and Muneo Yamaguchi and yusuke murakami and Hani Salehi-Had and Tatsuro Ishibashi",
year = "2016",
month = "7",
day = "8",
doi = "10.1186/s12886-016-0275-4",
language = "English",
volume = "16",
journal = "BMC Ophthalmology",
issn = "1471-2415",
publisher = "BioMed Central",
number = "1",

}

TY - JOUR

T1 - Detection of airbag impact-induced cone photoreceptor damage by adaptive optics scanning laser ophthalmoscopy

T2 - A case report

AU - Kaizu, Yoshihiro

AU - nakao, shintaro

AU - Yamaguchi, Muneo

AU - murakami, yusuke

AU - Salehi-Had, Hani

AU - Ishibashi, Tatsuro

PY - 2016/7/8

Y1 - 2016/7/8

N2 - Background: The purpose of this study was to report a case of traumatic maculopathy with para-central visual field defects following an impact by airbag deployment using adaptive optics scanning laser ophthalmoscopy (AO-SLO). Case presentation: A 51-year-old man was involved in a motor vehicular accident and his left eye was struck by the deployed airbag, resulting in a para-central scotoma. The patient underwent a full ophthalmologic examination, spectral-domain optical coherence tomography (SD-OCT), and imaging with prototype AO-SLO systems (Canon Inc.) at 14 and 22 months after the injury. Images focused on the photoreceptor layer were recorded in the foveal area, and a montage of AO-SLO images was created. On AO-SLO, focal dark areas could be observed in the left eye at 14 months after the injury. The analysis showed that the cone mosaic (cone density, 16503/mm2; ratio of hexagonal Voronoi domain, 36.3 %; average nearest-neighbor distance (NND)/expected NND, 0.606) was disordered compared with the normal area of the same eye (cone density, 24821/mm2; ratio of hexagonal Voronoi domain, 44.1 %; average NND/expected NND, 0.739). The cone defect area corresponded to the area of the scotoma. A second AO-SLO was performed on the patient at 22 months after the injury and although there were still areas with reduced cone reflectivity, partial improvement of cone mosaic was detected by AO-SLO at this time point. Conclusion: Partial recovery of damaged cone photoreceptors following closed globe blunt ocular trauma can be documented using AO-SLO longitudinal tracking.

AB - Background: The purpose of this study was to report a case of traumatic maculopathy with para-central visual field defects following an impact by airbag deployment using adaptive optics scanning laser ophthalmoscopy (AO-SLO). Case presentation: A 51-year-old man was involved in a motor vehicular accident and his left eye was struck by the deployed airbag, resulting in a para-central scotoma. The patient underwent a full ophthalmologic examination, spectral-domain optical coherence tomography (SD-OCT), and imaging with prototype AO-SLO systems (Canon Inc.) at 14 and 22 months after the injury. Images focused on the photoreceptor layer were recorded in the foveal area, and a montage of AO-SLO images was created. On AO-SLO, focal dark areas could be observed in the left eye at 14 months after the injury. The analysis showed that the cone mosaic (cone density, 16503/mm2; ratio of hexagonal Voronoi domain, 36.3 %; average nearest-neighbor distance (NND)/expected NND, 0.606) was disordered compared with the normal area of the same eye (cone density, 24821/mm2; ratio of hexagonal Voronoi domain, 44.1 %; average NND/expected NND, 0.739). The cone defect area corresponded to the area of the scotoma. A second AO-SLO was performed on the patient at 22 months after the injury and although there were still areas with reduced cone reflectivity, partial improvement of cone mosaic was detected by AO-SLO at this time point. Conclusion: Partial recovery of damaged cone photoreceptors following closed globe blunt ocular trauma can be documented using AO-SLO longitudinal tracking.

UR - http://www.scopus.com/inward/record.url?scp=84979658082&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84979658082&partnerID=8YFLogxK

U2 - 10.1186/s12886-016-0275-4

DO - 10.1186/s12886-016-0275-4

M3 - Article

C2 - 27391597

AN - SCOPUS:84979658082

VL - 16

JO - BMC Ophthalmology

JF - BMC Ophthalmology

SN - 1471-2415

IS - 1

M1 - 99

ER -