What Is Black Eye

  • Lewis Spencer PhD, Biomedical Sciences, General, University of Derby

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A black eye, often referred to as a "shiner," is a common and visible injury that many of us have encountered or heard about at some point in our lives. It's not only painful but can also be a source of embarrassment or concern for those who experience it. In this comprehensive guide, we will delve into the details of what a black eye is, what causes it, how it manifests, and what can be done to treat and prevent it.1

Black eyes are not limited to specific age groups or demographics; anyone, from children to the elderly, can sustain a black eye under certain circumstances.1 Understanding the causes, symptoms, and appropriate steps for managing this injury is crucial for everyone. Whether you've personally experienced a black eye, know someone who has, or simply want to be informed, this article will provide you with valuable insights into this common yet often misunderstood condition.

In the following sections, we will explore the various facets of black eyes, from the underlying causes to treatment options and prevention strategies. So, let's begin this journey to demystify the black eye and equip ourselves with knowledge that can prove invaluable in times of need.

Causes of a black eye

A black eye is the result of trauma to the eye area, which causes bleeding and bruising, specifically the delicate tissues surrounding the eye. This trauma can occur due to various causes, ranging from accidental injuries to medical conditions. In this section, we will explore the primary causes of black eyes in greater detail.2

Trauma is the primary cause   

Accidents and Falls: One of the most common reasons for sustaining a black eye is an accident or fall. People can accidentally bump into hard objects or trip and fall, impacting the eye area. The force of the impact can cause blood vessels beneath the skin to break, resulting in the characteristic bruising and swelling associated with black eyes.3

Physical Altercations: Black eyes are also frequently associated with physical altercations, such as fights or sports-related injuries. A blow or punch to the eye region can cause significant trauma, leading to a black eye. Sports like boxing, martial arts, and even recreational activities like basketball or soccer carry a risk of such injuries.3

Medical conditions that can lead to black eye

Allergies: In some cases, severe allergic reactions, particularly those affecting the eyes (allergic conjunctivitis), can lead to the appearance of a black eye. The intense itching and rubbing of the eyes during an allergic reaction can cause blood vessels to rupture, resulting in bruising.

Sinus Infections: Sinusitis, an inflammation of the sinuses, can cause pressure and pain around the eyes. In severe cases, it can lead to congestion and swelling in the eye area, giving the appearance of a black eye.

Blood Clotting Disorders: Individuals with certain blood clotting disorders, such as haemophilia, are more susceptible to bruising and may develop black eyes with minimal trauma. These conditions can make it challenging for the blood to clot properly, leading to more extensive bruising.3

Symptoms and appearance

Distinctive symptoms and a recognisable appearance characterise a black eye. Understanding these signs is crucial in diagnosing and differentiating them from other eye conditions or injuries. In this section, we will explore the symptoms and appearance of a black eye in detail.

Physical appearance of a black eye

A black eye typically presents with the following physical characteristics:

  1. Bruising: The hallmark sign of a black eye is bruising around the eye area. Initially, the bruise may appear red or purple and gradually darken to a bluish-black shade over a day or two. This discolouration occurs due to the pooling of blood beneath the skin's surface.
  2. Swelling: In addition to bruising, there is usually swelling around the eye. Swelling is the body's natural response to injury, and it occurs as a result of increased blood flow and fluid accumulation in the affected area.
  3. Tenderness: The skin and tissues around the eye become tender and sensitive to touch. This tenderness can range from mild discomfort to significant pain, depending on the severity of the injury.

Common symptoms

In addition to the visible physical appearance, individuals with a black eye may experience the following symptoms:

  1. Pain: Black eyes can be pretty painful, especially in the immediate aftermath of the injury. The pain may subside gradually as the bruising and swelling improve.
  2. Vision Changes (if the eye is affected): If the eye itself sustains an injury, it can lead to changes in vision. Blurred vision, double vision, or increased sensitivity to light are common visual disturbances associated with black eyes.

Treatment and home remedies

When dealing with a black eye, knowing how to provide appropriate care to alleviate discomfort and aid the healing process is crucial.4 In this section, we'll explore the various treatment options and home remedies available for managing a black eye.

First aid for a black eye

One of the initial steps in managing a black eye is providing first aid. Here are some key steps to follow:

  • Applying Ice: Apply an ice pack or a cold compress wrapped in a cloth or towel to the affected area. This can help reduce swelling and alleviate pain. It's recommended to apply the ice for 15-20 minutes every hour during the first 24-48 hours after the injury.
  • Over-the-Counter Pain Relievers: Non-prescription pain relievers, such as ibuprofen or acetaminophen, can be used to manage pain and discomfort associated with a black eye. Ensure you follow the recommended dosage instructions and consult a healthcare professional if you have any concerns or if you're already taking other medications.4

When to seek medical attention

While many black eyes can be managed at home, there are instances when seeking medical attention is necessary. It's advisable to consult a healthcare professional if:

  • The black eye results from a severe injury, such as a car accident or a significant fall.
  • There is damage to the eye itself, including changes in vision or bleeding from the eye.
  • You experience persistent or worsening pain, swelling, or bruising.
  • There is no concern about potential fractures or other facial injuries.

C. Medical Treatments

Depending on the severity of the black eye, your healthcare provider may recommend specific medical treatments:

  • Prescribed Medications: Sometimes, your doctor may prescribe medications to manage pain, reduce inflammation, or prevent infection, particularly if there are open wounds or lacerations.
  • Surgical Procedures (if necessary): While rare, severe trauma or complications may require surgical intervention to repair damaged tissues or address fractures.4


Preventing a black eye is a proactive approach to ensure your well-being and avoid the discomfort associated with this injury. By taking precautionary measures and making mindful choices, you can significantly reduce the risk of experiencing a black eye.1

Safety precautions

Incorporating safety precautions into your daily life is crucial for injury prevention. This includes:

  • Using handrails and taking care of stairs to avoid accidental falls.
  • Wear appropriate footwear that provides good traction, especially in slippery conditions.
  • Be cautious in environments where accidents are more likely to occur, such as construction sites or areas with uneven terrain.1

Protective gear

Engaging in activities with potential eye injury risks, such as sports or certain hobbies, necessitates the use of protective gear. This gear can include:

  • Helmets: When participating in biking, skateboarding, or contact sports activities.
  • Goggles or Safety Glasses: Essential for tasks that involve flying debris, chemicals, or potential eye hazards.
  • Face Shields: Particularly relevant in professions or hobbies where facial protection is needed.

Ensure that any protective gear you use fits correctly and is in good condition to provide maximum protection.

Conflict resolution

Avoiding confrontations and resolving conflicts peacefully can significantly reduce the risk of sustaining a black eye due to physical altercations. Seek non-violent solutions to disputes and prioritise communication and understanding.

Management of medical conditions

If you have medical conditions that make you prone to easy bruising or bleeding, it's essential to manage these conditions effectively. This may involve:

  • Adhering to your healthcare provider's advice and treatment plan.
  • Taking prescribed medications as directed.
  • Making necessary lifestyle adjustments to minimise the risk of injuries.

Allergies and eye health

Managing allergies effectively is crucial for individuals with allergies affecting their eyes, such as allergic conjunctivitis. By minimising eye rubbing and irritation, you can reduce the likelihood of developing a black eye.

Complications and recovery

While black eyes are generally not life-threatening, they can lead to complications and may require a period of recovery. In this section, we will explore potential complications associated with black eyes and discuss the recovery process.

Potential complications of a black eye

  1. Infection: If the skin around the eye is broken or there are open wounds, there is a risk of infection. It's essential to keep the area clean and follow any prescribed treatments or antibiotics to prevent infection.
  2. Conjunctival Hemorrhage: In some cases, the small blood vessels on the white part of the eye (conjunctiva) may also bleed, leading to a condition known as a conjunctival haemorrhage. While this is generally harmless, it can cause redness and discomfort.
  3. Eye Injury: Severe trauma can cause damage to the eye itself, potentially leading to vision problems or other eye-related complications. Any changes in vision, persistent pain, or bleeding from the eye should be promptly evaluated by a healthcare professional.

Expected recovery time

The recovery time for a black eye can vary depending on the severity of the injury. Here are some general guidelines:

  • Mild Black Eye: In cases of mild trauma, where there is minimal swelling and bruising, recovery may take about a week. During this time, the bruising and swelling will gradually fade.
  • Moderate to Severe Black Eye: If the injury is more severe, recovery may take two weeks or longer. The bruising and swelling may be more pronounced, and it may take additional time for the tissues to heal.
  • Eye Injuries: If the eye itself has been injured, recovery time can vary significantly. Following your healthcare provider's recommendations closely and attending follow-up appointments to monitor progress is essential.

During the recovery period, it's crucial to:

  • Continue following any prescribed treatments or medications.
  • Avoid activities or situations that could risk further injury to the affected eye.
  • Monitor for any signs of complications, such as increasing pain, infection, or vision changes.

Recovery from a black eye is generally a gradual process, and patience is key. Most individuals can expect significant improvement within the first week, with complete resolution over several weeks.


In conclusion, a black eye, although not life-threatening, is a common injury resulting from trauma to the eye area or certain medical conditions. Recognised by bruising, swelling, tenderness, and occasionally changes in vision, it necessitates prompt attention. First-aid measures like applying ice and using over-the-counter pain relievers can alleviate pain and swelling, but medical consultation may be required in more severe cases. Prevention entails safety precautions, protective gear, conflict avoidance, and managing underlying health conditions. While complications like infection, conjunctival haemorrhage, or eye injuries are infrequent, vigilance and adherence to medical advice during recovery are essential. Understanding the causes, symptoms, and appropriate responses to black eyes equips individuals to navigate these situations effectively, promoting a smoother healing process and minimizing their impact on overall well-being.


  • 1.Pessa JE, Zadoo VP, Adrian EK, Woodwards R, Garza JR. Anatomy of a “black eye”: A newly described fascial system of the lower eyelid. Clin Anat [Internet]. 1998 [cited 2023 Sep 21];11(3):157–61. Available from: https://onlinelibrary.wiley.com/doi/10.1002/(SICI)1098-2353(1998)11:3<157::AID-CA2>3.0.CO;2-Q
  • 2.Key S, Dhariwal D, Patton D. Beware the black eye. Trauma [Internet]. 2002 Oct [cited 2023 Sep 21];4(4):237–45. Available from: http://journals.sagepub.com/doi/10.1191/1460408602ta272oa
  • 3.nhs.uk [Internet]. 2017 [cited 2023 Sep 21]. Black eye. Available from: https://www.nhs.uk/conditions/black-eye/
  • 4.Büttner M, Schlittler FL, Michel C, Exadaktylos AK, Iizuka T. Is a black eye a useful sign of facial fractures in patients with minor head injuries? A retrospective analysis in a level I trauma centre over 10 years. British Journal of Oral and Maxillofacial Surgery [Internet]. 2014 Jul 1 [cited 2023 Sep 21];52(6):518–22. Available from: https://www.sciencedirect.com/science/article/pii/S0266435614001259

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This content is purely informational and isn’t medical guidance. It shouldn’t replace professional medical counsel. Always consult your physician regarding treatment risks and benefits. See our editorial standards for more details.

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Dr. Lewis Spencer

Doctor of Philosophy - PhD, Biomedical Sciences, General, University of Derby

Lewis is a PhD graduate, where his research focus was on obesity and diabetes treatment with GLP-1 Receptor Agonists. He also has 6 years' experience as an Associate Lecturer in Sport and Exercise Physiology and Research Methods. He is now working as a Health Information Specialist.

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