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

被引:6
|
作者
Kaizu, Yoshihiro [1 ]
Nakao, Shintaro [1 ]
Yamaguchi, Muneo [1 ]
Murakami, Yusuke [1 ]
Salehi-Had, Hani [2 ]
Ishibashi, Tatsuro [1 ]
机构
[1] Kyushu Univ, Grad Sch Med Sci, Dept Ophthalmol, Higashi Ku, 3-1-1 Maidashi, Fukuoka 8128582, Japan
[2] Atlantis Eyecare, Huntington Beach, CA USA
来源
BMC OPHTHALMOLOGY | 2016年 / 16卷
关键词
Motor vehicular accident; Photoreceptor damage; Scotoma; AO-SLO; Traumatic maculopathy; OCULAR INJURIES; DENSITY; EYE;
D O I
10.1186/s12886-016-0275-4
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
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/mm(2); 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/mm(2); 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.
引用
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页数:6
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