Trauma-Related Retinopathies


7


Trauma-Related Retinopathies


COMMOTIO RETINAE


Musa Abdelaziz, MD and Eric D. Weichel, MD


Self-limited opacification of retina secondary to direct blunt ocular trauma


Signs and Symptoms


Decreased vision, pain after recent trauma


Exam Findings


Retinal whitening in macula (Berlin’s edema) and/or peripherally (Figure 7-1A); retinal, preretinal, and/or subretinal hemorrhages



art


Figure 7-1. Commotio retinae. (A) Color fundus photo with macular retinal whitening consisted with Berlin’s edema. (B) OCT of acute commotio showing abnormality of the ellipsoid zone (between arrowheads) and subretinal fluid (arrow). (C) One week later, OCT showed resolution of the subretinal fluid but attenuation of the ellipsoid zone (between arrowheads). (Reprinted with permission from William E. Benson, MD.)


Testing


Optical coherence tomography (OCT): early post-trauma hyperreflectivity of photoreceptor layers (ellipsoid zone), followed by thinning of photoreceptor layer (Figures 7-1B and 7-1C)


Differential Diagnosis


Choroidal rupture, chorioretinitis sclopetaria, traumatic retinal hole, Purtscher retinopathy


Management


No treatment is indicated or available, other than observation.


CHOROIDAL RUPTURE


Kevin Broderick, MD and Eric D. Weichel, MD


Typically due to blunt trauma causing tears of choroid, retinal pigment epithelium (RPE), and Bruch’s membrane


Signs and Symptoms


Decreased vision, metamorphopsia; asymptomatic if lesion is not involving central macula


Exam Findings


Yellow or white curvilinear subretinal streak(s) typically oriented in concentric pattern with disc margin often associated with subretinal hemorrhage, which may initially mask underlying rupture; hyperpigmentation at margins with chronicity; new hemorrhage or subretinal fluid if choroidal neovascularization (CNV) develops (Figure 7-2A)



art


Figure 7-2. (A) Color fundus photograph showing choroidal rupture within the macula of a 16-year-old male who suffered blunt trauma to the right eye 1 month prior. (B) FA revealing late leakage adjacent to the choroidal rupture consistent with active CNV.


Testing



Differential Diagnosis


Angioid streaks, lacquer cracks


Management



  • Isolated choroidal rupture(s): observation with regular monitoring and Amsler grid testing for detection of CNV
  • CNV: intravitreal anti-vascular endothelial growth factor (VEGF) therapy is first-line treatment; laser photocoagulation if extrafoveal; photodynamic therapy

CHORIORETINITIS SCLOPETARIA


Turner D. Wibbelsman, BS and Michael A. Klufas, MD


Results from high-velocity projectile (eg, pellet, BB, bullet) passing adjacent to globe near or in orbit without globe penetration causing concussive (“shock wave”) forces



art


Figure 7-3. Retinal whitening and pigmented fibroproliferative tissues along with subretinal hemorrhage inferotemporally observed in eye with chorioretinitis sclopetaria.


Signs and Symptoms


Varying visual acuity depending on injury location and severity


Exam Findings


Full-thickness retinal and choroidal rupture, choroidal and retinal hemorrhages (sub-, intra- and preretinal), vitreous hemorrhage, healed rupture sites leave white, partially-pigmented fibroproliferative tissue (Figure 7-3)


Testing



  • B-scan ultrasound: assess globe integrity for possible rupture
  • Computed tomography (CT) scan: assist in locating projectile, identifying additional orbital injuries; thin (1 mm) cuts to rule out occult globe penetration/intraocular foreign body (IOFB)
  • OCT: full-thickness rupture may appear hyperreflective

Differential Diagnosis


Ruptured globe, choroidal rupture, IOFB


Management



  • Observation initially: fibroglial scarring can fuse retinal and choroidal tissue, decreasing chances of retinal detachment (RD)
  • Consider topical steroids and/or topical cycloplegic for pain control/ciliary body spasm
  • Vitrectomy if persistent vitreous hemorrhage or RD

AVULSION OF THE VITREOUS BASE


Ehsan Rahimy, MD



  • Pathognomonic of previous ocular trauma
  • Anteroposterior compression of globe during blunt ocular trauma leads to equatorial expansion which may avulse vitreous base from retina and pars plana
  • More common in superonasal and inferotemporal quadrants


art


Figure 7-4. Curvilinear vitreous condensation characteristic of avulsed vitreous base with pigmented debris visible on slit lamp exam. (Reprinted with permission from William E. Benson, MD.)


Signs and Symptoms


Blurry vision, floaters, photopsias, progressive peripheral visual field defect if associated with a RD


Exam Findings


Curvilinear “bucket handle” vitreous condensation hanging over peripheral retina (Figure 7-4); if extensive, may be visible in anterior vitreous on slit lamp examination; potentially associated findings: iritis, angle recession, traumatic cataract, vitreous hemorrhage, anterior vitreous pigment, posterior vitreous detachment, commotio retinae, intraretinal hemorrhages, retinal breaks, retinal dialysis, RD


Differential Diagnosis


Retinal dialysis, peripheral RD


Management


Thorough peripheral exam with scleral depression along with close follow-up given high-risk of RD


PHOTIC INJURY


M. Ali Khan, MD



  • Prolonged exposure to intense light source leads to release of reactive oxygen species
  • Common causes: solar retinopathy, Welder’s maculopathy, surgical illumination (operating microscope and/or endoilluminators), accidental hand-held laser injury
  • Risk factors: young age, use of photosensitizing or illicit drugs, impaired mental status (prolonged sun gazing), clear intraocular lens

Signs and Symptoms


Decreased vision, central scotoma, erythropsia (reddish hue to vision)


Exam Findings


Focal, yellow-white foveal lesion which may fade with time (Figure 7-5); larger areas of retinal whitening or yellowing may be present with more widespread exposure; concurrent photo-keratitis; secondary findings: CNV, subretinal hemorrhage (Figure 7-6A), subhyaloid hemorrhage, macular hole, and epiretinal membrane may develop post injury



art


Figure 7-5. Fundus photo of solar retinopathy showing a focal yellowish foveal lesion.

Stay updated, free articles. Join our Telegram channel

Nov 28, 2021 | Posted by in OPHTHALMOLOGY | Comments Off on Trauma-Related Retinopathies

Full access? Get Clinical Tree

Get Clinical Tree app for offline access