After hitting my forehead, I see stars when I close my eyes; should I go to the emergency department for evaluation?

Go to the Emergency Department Immediately

After hitting your forehead and seeing stars when you close your eyes, you should go to the emergency department for evaluation, especially if this visual phenomenon persists or is accompanied by other concerning symptoms.

Why This Matters

Seeing stars or visual phenomena after head trauma can indicate several concerning conditions that require urgent evaluation:

Concussion/Mild Traumatic Brain Injury

Visual disturbances are a recognized symptom of concussion 1. The ocular-motor subtype of concussion specifically includes:

• Blurred vision or visual disturbances
• Difficulty with visual focus
• Photophobia (light sensitivity)
• Eye strain and fatigue
• Vision-derived symptoms that may worsen with screen time or reading

Key point: Visual symptoms from concussion typically improve along with other concussion symptoms. If your visual phenomena persist or worsen independently, this warrants immediate evaluation for other causes 1.

When to Seek Emergency Care

You should go to the ED if you experience:

• Persistent or worsening visual symptoms (stars, flashes, floaters)
• Headache that worsens over time
• Any loss of consciousness (even brief)
• Confusion or memory problems
• Repeated vomiting
• Neurologic deficits (weakness, numbness, speech problems)
• Seizure activity

Critical Imaging Considerations

Based on head trauma guidelines 2, 3:

• A CT scan of the head is indicated for patients with visual complaints after head trauma
• Variables that increase risk of intracranial injury include:
  • Glasgow Coma Scale score less than 15
  • Neurologic deficits
  • Severe headache
  • Vomiting
  • Dangerous mechanism of injury (significant impact)

Rare but Serious Ocular Emergencies

While less common with forehead trauma, serious eye injuries can occur 4:

• Retinal detachment - can present with flashes of light, floaters, or "stars"
• Retinal arterial occlusion - though typically presents with painless vision loss rather than stars
• Globe injury - from penetrating trauma

What the ED Will Do

The emergency evaluation will include:

1. Neurologic examination - assessing mental status, cranial nerves, motor/sensory function
2. Visual acuity testing and basic eye examination
3. CT head scan if indicated based on clinical findings 2, 3
4. Ophthalmology consultation if specific ocular injury is suspected 5

Common Pitfalls to Avoid

• Don't dismiss visual symptoms as "just seeing stars" - while brief photopsia (seeing lights/stars) immediately after impact can be benign, persistent symptoms require evaluation
• Don't wait to see if symptoms resolve - the risk of complications is highest in the first 24-48 hours after head trauma
• Don't drive yourself if you have any confusion, dizziness, or visual disturbances

Bottom Line

Visual phenomena after head trauma, especially if persistent beyond the immediate moment of impact, requires emergency evaluation to rule out intracranial injury or serious ocular pathology. The combination of head trauma plus visual symptoms meets criteria for urgent imaging and clinical assessment 2, 3. When in doubt, err on the side of caution and seek emergency care.