# A nurse is assessing a patient who sustained a blunt trauma to the left eye during a sports game. Which assessment finding would be most indicative of an eye contusion?

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## 문제

A nurse is assessing a patient who sustained a blunt trauma to the left eye during a sports game. Which assessment finding would be most indicative of an eye contusion?

## 보기

1. Presence of a foreign body in the cornea
2. Clear drainage from the eye with no discoloration
3. Pupil that is dilated and non-reactive to light
4. Periorbital swelling with bluish-black discoloration **✔ 정답**

**정답: 4**

## 해설

Periorbital swelling with bluish-black discoloration is characteristic of an eye contusion (black eye) due to bleeding into tissues after blunt trauma. Other options like foreign body or clear drainage are not specific to contusion and may indicate different injuries.

## 심화 해설

Understanding Eye Contusion (Blunt Trauma)

An eye contusion, often referred to as a "black eye," results from blunt trauma that causes capillary rupture and tissue damage in the periorbital region. The force of impact leads to immediate edema and the classic ecchymosis as blood accumulates in the soft tissues. While this anterior segment finding is often visually dramatic, it is critical to understand that significant posterior segment pathology can coexist and be easily overlooked [1]. The initial presentation of periorbital swelling with bluish-black discoloration is the direct, visible consequence of the contusion mechanism at the impact site.

Analysis of Assessment Findings

- Periorbital swelling with bluish-black discoloration: This is the hallmark sign of a contusion. The blunt force causes bleeding from ruptured small vessels into the loose subcutaneous tissue of the eyelid and periorbital area. The discoloration evolves from reddish to bluish-black as hemoglobin degrades, directly indicating the traumatic force and soft tissue injury [1].

- Presence of a foreign body in the cornea: This finding is more indicative of a penetrating or superficial foreign body injury, not a blunt contusion. A contusion is caused by a diffuse impact force, not a discrete object embedding in the ocular surface.

- Clear drainage from the eye with no discoloration: Clear, watery drainage following trauma is a critical red flag for a cerebrospinal fluid (CSF) leak, suggesting an orbital roof fracture with dural tear, not a simple contusion. This requires immediate, distinct intervention and testing the fluid for glucose or beta-2 transferrin.

- Pupil that is dilated and non-reactive to light: This describes traumatic mydriasis, which is a possible complication of blunt ocular trauma due to damage to the iris sphincter muscle [1]. However, it is a specific posterior/anterior chamber complication that may or may not be present. The question asks for the finding most indicative of the contusion itself, which is the direct soft tissue injury at the point of impact.

Clinical Reasoning and Prioritization

The key to answering this question lies in distinguishing the primary injury mechanism from its potential complications. A contusion is defined by tissue damage from blunt force, and the periorbital ecchymosis and edema are the direct clinical manifestations of that mechanism [1]. While findings like traumatic mydriasis are documented sequelae of sports-related blunt ocular trauma, they represent a more specific intraocular injury that may occur secondary to the contusion [1]. The nurse's initial assessment must first identify the primary injury pattern. Recognizing the "black eye" as the cardinal sign of a contusion allows the nurse to then conduct a focused assessment for the "coexisting" and "easily overlooked" posterior segment or orbital pathologies that can accompany even mild-appearing anterior findings [1,2]. This layered assessment approach is crucial, as maxillofacial fractures and ocular trauma in sports carry significant functional and aesthetic consequences if unrecognized .References (research sources)

- [1]From Field to Fundus: A Peripheral Retinal Tear Following Football-Related Ocular Trauma.Research articleMohd Amin MHA, Salam A. (2026) · DOI: 10.7759/cureus.109005

## 임상 시나리오

Assessing for Eye Contusion After Blunt TraumaDifferentiating a "Black Eye" from More Serious Injuries
The hallmark of an eye contusion from blunt trauma is periorbital swelling with bluish-black discoloration (ecchymosis). This results from ruptured capillaries in the loose subcutaneous tissue.

A full eye assessment is critical. While the anterior contusion is visible, the force can also cause hidden posterior segment damage like a retinal detachment or globe rupture.

CautionNever dismiss clear, watery drainage from the eye after trauma. This is a cerebrospinal fluid (CSF) leak until proven otherwise and indicates a possible orbital roof fracture requiring immediate physician notification.

## 핵심 개념

- **Contusion** — A bruise caused by blunt trauma that ruptures capillaries, leading to bleeding into tissues and characteristic discoloration.
- **Periorbital Ecchymosis** — Bluish-black discoloration around the eye resulting from blood accumulating in the loose subcutaneous tissue after trauma.
- **CSF Leak** — Leakage of cerebrospinal fluid, often presenting as clear, watery drainage from the nose or ear, indicating a skull fracture.

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