Commotio Retinae and Chorioretinitis Sclopetaria
41 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Commotio retinae is characterized by damage to which layers of the eye following blunt trauma?

  • Outer retinal layers (correct)
  • Lens fibers
  • Corneal endothelial layers
  • Inner retinal layers

A patient presents with blurry vision and gray-white opacification of the retina following a sports injury. Which condition is most likely indicated by these symptoms?

  • Chorioretinitis sclopetaria
  • Central retinal vein occlusion
  • Commotio retinae (correct)
  • Optic neuritis

Which of the following is the MOST common cause of limited visual recovery in patients with commotio retinae?

  • Late choroidal atrophy
  • Extensive peripheral damage
  • Macular hole (correct)
  • Choroidal rupture

A patient diagnosed with commotio retinae is concerned about long-term vision loss. What is the typical prognosis for visual recovery?

<p>Vision typically recovers within 3-4 weeks (C)</p> Signup and view all the answers

Chorioretinitis sclopetaria is caused by:

<p>High-velocity projectile passing near the orbit. (B)</p> Signup and view all the answers

What distinguishes chorioretinitis sclopetaria from commotio retinae in terms of mechanism of injury?

<p>Chorioretinitis sclopetaria involves a projectile injury, while commotio retinae involves blunt trauma. (D)</p> Signup and view all the answers

Which of the following is the MOST likely long-term complication of chorioretinitis sclopetaria?

<p>Reactive hyperplastic pigmentary change. (B)</p> Signup and view all the answers

A patient presents with Purtscher-like retinopathy, but has no history of trauma. Which of the following conditions could be a potential underlying cause?

<p>Acute pancreatitis (B)</p> Signup and view all the answers

A patient is diagnosed with Purtscher retinopathy following a traumatic injury. Which of the following represents the most appropriate initial treatment approach?

<p>Observation and management of underlying trauma (C)</p> Signup and view all the answers

Valsalva retinopathy is characterized by a sudden increase in pressure. Which of the following correctly describes the primary mechanism by which this condition affects the retina?

<p>Spontaneous rupture of retinal capillaries (A)</p> Signup and view all the answers

Which of the following activities is least likely to be associated with the development of Valsalva retinopathy?

<p>Prolonged reading (B)</p> Signup and view all the answers

A patient with a history of systemic lupus erythematosus (SLE) presents with Purtscher-like retinopathy. What treatment is most likely to be considered in this case?

<p>Intravenous steroids (B)</p> Signup and view all the answers

What characteristic of Bruch's membrane and RPE contributes to their rupture in chorioretinitis sclopetaria?

<p>Inelasticity (D)</p> Signup and view all the answers

Which mechanism is considered to play a role in the indirect injury observed in chorioretinitis sclopetaria?

<p>Transmission of shock waves to the globe (C)</p> Signup and view all the answers

Why does the sclera typically remain intact in cases of chorioretinitis sclopetaria?

<p>It is elastic (C)</p> Signup and view all the answers

Which of the following patient demographics is most likely to be affected by chorioretinitis sclopetaria?

<p>Young males (A)</p> Signup and view all the answers

Which of the following is a common early sign observed in chorioretinitis sclopetaria?

<p>Vitreous hemorrhage (A)</p> Signup and view all the answers

What is the appearance of Bruch’s membrane and choriocapillaris breaks after hemorrhage clears in chorioretinitis sclopetaria?

<p>Claw-like (C)</p> Signup and view all the answers

Which of the following visual acuity (VA) ranges is most likely to be observed in a patient with chorioretinitis sclopetaria?

<p>20/400 to NLP (no light perception) (A)</p> Signup and view all the answers

What is the significance of 'split and retract' in the context of chorioretinitis sclopetaria?

<p>It refers to the separation and retraction of the choroid and retina, revealing bare sclera (D)</p> Signup and view all the answers

In addition to visual acuity loss and hemorrhage, what other clinical sign is commonly associated with chorioretinitis sclopetaria?

<p>Relative afferent pupillary defect (RAPD) (D)</p> Signup and view all the answers

What diagnostic procedure is MOST helpful in evaluating the extent of vitreous hemorrhage and ruling out retinal detachment following ocular trauma?

<p>Computed Tomography (CT) or Sonogram (C)</p> Signup and view all the answers

A patient presents with sudden vision loss after a chest compression injury. Examination reveals multiple patches of superficial retinal whitening and intraretinal hemorrhages. This is MOST consistent with:

<p>Purtscher Retinopathy (A)</p> Signup and view all the answers

A patient with choroidal rupture is being monitored. What is the MOST significant long-term complication to watch for?

<p>Development of secondary choroidal neovascularization (CNV) membranes (A)</p> Signup and view all the answers

In Purtscher retinopathy, what is the typical timeframe for the progression of fundus changes after the initial trauma?

<p>Fundus changes are immediately apparent and may progress over 1–2 days. (C)</p> Signup and view all the answers

Which of the following is a typical finding in fluorescein angiography (FA) for Purtscher retinopathy?

<p>Focal areas of retinal arteriolar obstruction. (A)</p> Signup and view all the answers

What is the MOST appropriate management strategy for commotio retinae?

<p>Observation (A)</p> Signup and view all the answers

A patient diagnosed with Purtscher retinopathy exhibits polygonal areas of retinal whitening with a clear demarcation from normal retinal vessels. This finding is known as:

<p>Purtscher flecken (B)</p> Signup and view all the answers

What percentage of Purtscher retinopathy cases result in permanent visual impairment, despite the resolution of acute fundus changes?

<p>Approximately 50% (D)</p> Signup and view all the answers

In optical coherence tomography (OCT) imaging of Purtscher retinopathy, which of the following findings corresponds to cotton-wool spots?

<p>Hyperreflectivity in the inner retinal layer. (A)</p> Signup and view all the answers

In which scenario is surgical intervention MOST likely required following ocular trauma?

<p>Significant vision loss due to vitreous hemorrhage and retinal detachment (D)</p> Signup and view all the answers

What structural change is associated with Purtscher flecken on spectral domain OCT?

<p>A hyper-reflective band in the inner nuclear layer, known as PAMM. (B)</p> Signup and view all the answers

What is the underlying mechanism behind Purtscher retinopathy?

<p>Microvascular damage with occlusion and ischemia (B)</p> Signup and view all the answers

A patient presents with Purtscher retinopathy sparing the retina immediately adjacent to the arterioles. Where are the cotton wool spots likely to be?

<p>Peripapillary region. (D)</p> Signup and view all the answers

A patient diagnosed with metastatic pancreatic cancer presents with bilateral Purtscher-like retinopathy. What is the significance of cotton-wool spots observed along the arcades and in a peripapillary distribution?

<p>They are indicative of superficial capillary ischemia. (D)</p> Signup and view all the answers

Which of the following findings in ocular trauma has the POOREST visual prognosis?

<p>Involvement of the macular area (D)</p> Signup and view all the answers

What does the presence of Purtscher flecken indicate regarding the retinal layers in a patient with Purtscher-like retinopathy?

<p>A deeper polygonal zone of whitening adjacent to the fovea. (A)</p> Signup and view all the answers

Which of the following is a typical characteristic of Purtscher flecken?

<p>They spare the retina immediately adjacent to arterioles. (A)</p> Signup and view all the answers

In the context of Purtscher retinopathy, how should the prognosis be generally characterized?

<p>Guarded, as acute changes resolve but visual impairment can occur (B)</p> Signup and view all the answers

How do chronic cases of Purtscher retinopathy affect photoreceptors?

<p>Photoreceptor loss and outer retinal atrophy may occur. (B)</p> Signup and view all the answers

A patient with a history of significant trauma presents with decreased vision. Fundus examination reveals cotton-wool spots and Purtscher flecken. Which imaging modality would be MOST helpful in further evaluating the retinal changes at the microscopic level?

<p>Optical Coherence Tomography (OCT) (C)</p> Signup and view all the answers

Flashcards

Commotio Retinae

Traumatic retinopathy caused by blunt trauma to the eye.

Causes of Commotio Retinae

Direct trauma to the globe from high impact sports, violence, or motor vehicle accidents.

Symptoms of Commotio Retinae

Gray-white opacification with possible vision loss or blurry vision immediately after trauma.

Prognosis of Commotio Retinae

Generally good; condition usually clears up in 3-4 weeks without acute treatment.

Signup and view all the flashcards

Complications of Commotio Retinae

Late choroidal atrophy may occur after the injury.

Signup and view all the flashcards

Chorioretinitis Sclopetaria

A rare condition involving rupture of the choroid and retina from high-velocity objects without penetrating the globe.

Signup and view all the flashcards

Visual Outcomes with Trauma

Vision may be permanently lost if complications arise, such as choroidal rupture or retinal hemorrhage.

Signup and view all the flashcards

Hemorrhage

Bleeding that occurs in layers of the choroid and retina due to injury.

Signup and view all the flashcards

Vision improvement after injury

In this case, vision improved to recognizing hand motions but was severely limited.

Signup and view all the flashcards

Direct injury mechanism

Injury caused directly by the bullet's path affecting eye structures.

Signup and view all the flashcards

Indirect injury mechanism

Injury to the eye caused by shock waves from the bullet, even without direct contact.

Signup and view all the flashcards

Risk factors for ocular injuries

Demographics and items associated with a higher likelihood of eye injuries, like young males and specific projectiles.

Signup and view all the flashcards

Signs of retinal injury

Limitations in visual acuity, possible hemorrhage, and relative afferent pupillary defect noted post-injury.

Signup and view all the flashcards

Bruch’s membrane

A thin layer that can rupture due to inelasticity, leading to further complications after eye trauma.

Signup and view all the flashcards

Fibrotic scarring

Formation of scar tissue that occurs due to healing after significant ocular injuries.

Signup and view all the flashcards

Purtscher-like Retinopathy

Retinal condition associated with various non-traumatic conditions like acute pancreatitis.

Signup and view all the flashcards

Traumatic Causes of Purtscher Retinopathy

Retinopathy resulting from head trauma, chest compression, or bone fractures.

Signup and view all the flashcards

Valsalva Retinopathy

Retinal hemorrhage from sudden increased intrathoracic pressure, causing ruptured capillaries.

Signup and view all the flashcards

Non-Traumatic Conditions

Medical conditions like acute pancreatitis and renal failure that can cause retinopathy without trauma.

Signup and view all the flashcards

Treatment for Purtscher Retinopathy

No established treatment; steroids may help retinopathy due to vasculitis, but efficacy is controversial.

Signup and view all the flashcards

CT/Sonogram

Diagnostic imaging to evaluate vitreous hemorrhage and rule out retinal detachment.

Signup and view all the flashcards

OCT

Optical Coherence Tomography used to detect retinal conditions including ruptures.

Signup and view all the flashcards

Choroidal rupture

Tear in the choroid layer; can lead to secondary neovascularization.

Signup and view all the flashcards

Significant vision loss

Loss of eyesight requiring surgical intervention like vitrectomy or buckling.

Signup and view all the flashcards

Purtscher Retinopathy

Condition characterized by retinal whitening and hemorrhages after head trauma.

Signup and view all the flashcards

Cotton-wool spots

Small white patches in the retina indicating localized ischemia.

Signup and view all the flashcards

Putcher flecken

Pathognomonic finding of polygonal retinal whitening demarcated by vessels.

Signup and view all the flashcards

Visual loss range

Patients can show varying visual acuity from normal to no light perception after trauma.

Signup and view all the flashcards

Secondary choroidal neovascularization

Abnormal growth of blood vessels in the choroid due to damage and monitoring.

Signup and view all the flashcards

Late leakage in FA

Delayed fluid leakage observed in fluorescein angiography.

Signup and view all the flashcards

Study Notes

Commotio Retinae

  • Also known as Berlin's edema
  • Traumatic retinopathy due to direct globe trauma
  • Common in high-impact sports and motor vehicle accidents
  • Damage to outer retinal layers from shock waves
  • Retinal whitening appears hours after injury
  • Most common in the posterior pole, but possible in periphery
  • Macular involvement may cause limited recovery
  • Associated with various complications:
    • Cystoid macular edema
    • Macular hole
    • Choroidal rupture
    • Macular pigment epitheliopathy
  • Symptoms:
    • Blurred vision immediately after trauma
    • Potential vision loss, decreased VA (visual acuity) as low as 20/200
  • Prognosis generally good; resolution expected within weeks.

Chorioretinitis Sclopetaria

  • Traumatic chorioretinal rupture or chorioretinitis proliferans
  • Uncommon
  • Caused by high-velocity projectile injury (e.g., bullet, BB gun) near or through orbit (without penetrating globe).
  • Injury leads to a full-thickness chorioretinal defect resulting in vision loss.
  • Can cause extensive vitreous and retinal hemorrhages
  • Often with delayed, chronic changes of atrophy of pigment, and fibrotic patches in retina

Purtscher Retinopathy

  • Characterized by multiple superficial retinal whitening patches, intraretinal hemorrhages, and papillitis.
  • Often following severe head trauma, especially chest compression injuries
  • Visual acuity loss can range from 20/20 to counting fingers.
  • Symptoms include white retinal patches resembling cotton wool spots; superficial peripapillary hemorrhages
  • Pathognomonic feature: polygonal areas of retinal whitening.

High Altitude Retinopathy

  • Occurs in individuals engaging in vigorous activities at high altitudes.
  • Intraretinal hemorrhages, retinal cotton-wool spots also possible optic nerve edema.
  • Visual loss may result from increased venous pressure, secondary to the hypoxic environment.
  • Generally self-limiting with observation.

Valsalva Retinopathy

  • Caused by sudden increases in intrathoracic or intraabdominal pressure.
  • Pre-retinal or subhyaloidal hemorrhages.
  • Usually secondary to activities like straining during bowel movements, childbirth, or ocular massage
  • Hemorrhagic detachment of the internal limiting membrane (ILM)
  • Visual acuity varies depending on the extent of the retinal involvement.

Terson Syndrome

  • Intraocular hemorrhage associated with subarachnoid hemorrhage.
  • Result of increased intracranial pressure causing retinal capillary rupture.
  • Hemorrhage typically located in the sub-retinal and sub-ILM areas.
  • Visual disturbances range from minor effects to major vision loss.

Shaken Baby Syndrome

  • Usually seen in infants and children from inflicted trauma
  • Signs including diffuse retinal hemorrhages, macular retinoschisis
  • Hemorrhagic macular retinoschisis and retinal hemorrhages
  • Often accompanied by other signs of abuse or traumatic brain injury.
  • Prognosis varies, but may include cortical blindness in some cases.
  • Immediate reporting of suspected abuse to authorities is essential.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Traumatic Retinopathies PDF

Description

Explore Commotio Retinae (Berlin's edema), a traumatic retinopathy caused by direct globe trauma, common in sports and accidents. Also, learn about Chorioretinitis Sclopetaria, a rare chorioretinal rupture from high-velocity projectile injuries. This includes causes, symptoms, and prognosis.

More Like This

Retinal Anatomy and Physiology Quiz
5 questions
Ophthalmology Quiz: Retinal Disorders
30 questions
Commotio Retinae: Traumatic Retinopathy
30 questions
Use Quizgecko on...
Browser
Browser