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What causes a red spot on an eye?

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Most happen when your blood pressure spikes due to:

  • Strong sneezing
  • Straining
  • Powerful coughing
  • Vomiting Some red spots result from an injury or illness, like:
  • Roughly rubbing your eye
  • Trauma, like something gets stuck in your eye
  • Contact lenses
  • Viral infection
  • Surgery Less common causes include:
  • Diabetes
  • High blood pressure
  • Medicines that make you bleed easily (such as aspirin or blood thinners like coumadin)
  • Blood clotting disorders

From: Why Do I Have a Red Spot on My Eye? WebMD Medical Reference

SOURCES:

American Academy of Ophthalmology: “Subconjunctival Hemorrhage Causes,” “Subconjunctival Hemorrhage Treatment,” “What Is a Subconjunctival Hemorrhage?”

Mayo Clinic: “Subconjunctival Hemorrhage (broken blood vessel in eye): Diagnosis,” “Subconjunctival Hemorrhage (broken blood vessel in eye): Overview,”

Clinical Ophthalmology : “Subconjunctival hemorrhage: risk factors and potential indicators.”

Reviewed by Neha Pathak on October 23, 2017

SOURCES:

American Academy of Ophthalmology: “Subconjunctival Hemorrhage Causes,” “Subconjunctival Hemorrhage Treatment,” “What Is a Subconjunctival Hemorrhage?”

Mayo Clinic: “Subconjunctival Hemorrhage (broken blood vessel in eye): Diagnosis,” “Subconjunctival Hemorrhage (broken blood vessel in eye): Overview,”

Clinical Ophthalmology : “Subconjunctival hemorrhage: risk factors and potential indicators.”

Reviewed by Neha Pathak on October 23, 2017

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When is primary congenital glaucoma (PCG) usually spotted?

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