Sayegh Rony R, Madsen Kimberly A, Adler Jason D, Johnson Mary A, Mathews Michaela K
Department of Ophthalmology and Visual Sciences, University of Maryland School of Medicine, Baltimore, MD, USA.
Doc Ophthalmol. 2011 Oct;123(2):135-9. doi: 10.1007/s10633-011-9287-9. Epub 2011 Sep 11.
To describe a non-penetrating TASER gun injury resulting in a small exudative retinal detachment but significant visual acuity and retinal function loss as demonstrated by electroretinography (ERG). A 39-year-old man presented to the emergency department with a TASER barb embedded in his right lower lid. A complete clinical ophthalmologic examination and surgical extrication were performed, as well as radiologic imaging and Ganzfeld electroretinography. No scleral penetration was observed on surgical exploration. Retinal examination showed a peripheral exudative detachment. Subsequent follow-up revealed progressive resolution of the detachment and improvement in visual acuity. The ERG showed a 63-70% decrease in rod a- and b-waves, while isolated cone responses were reduced by only 10%, with a minimal increase in implicit time. This case shows that periocular TASER injuries, even if apparently superficial, may result in significant ocular damage. ERG may be useful in the diagnosis of visual loss attributed to disturbance in photoreceptor function, in the absence of anatomically evident damage.
描述一例非穿透性泰瑟枪损伤，导致小范围渗出性视网膜脱离，但视力和视网膜功能显著丧失，这通过视网膜电图（ERG）得以证实。一名39岁男性因泰瑟枪倒钩嵌入右下眼睑就诊于急诊科。进行了全面的临床眼科检查和手术取出，以及放射影像学检查和全视野视网膜电图检查。手术探查未发现巩膜穿透。视网膜检查显示周边渗出性脱离。随后的随访显示脱离逐渐消退，视力改善。ERG显示视杆细胞a波和b波下降63%-70%，而孤立的视锥细胞反应仅下降10%，潜伏期略有增加。该病例表明，眼周泰瑟枪损伤即使表面看似轻微，也可能导致严重的眼部损害。在没有解剖学明显损伤的情况下，ERG可能有助于诊断因光感受器功能障碍导致的视力丧失。
