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Symptoms of Glaucoma

  • Cynthia M. Johnson, MA
Publication Type:


Symptoms of Glaucoma

Glaucoma makes it hard to see objects to the side and out of the corner of the eye. A person may feel as though they are looking through a tunnel. Eyesight can worsen until a person becomes blind.

The Eye.

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People with open-angle glaucoma often do not have symptoms at first. Vision problems happen as it gets worse. People with angle-closure glaucoma may have some early problems that lead up to an attack.

Glaucoma may cause:

  • Blind spots
  • Blurred eyesight
  • Halos around lights
  • Eye aching or stinging
  • Problems seeing in dim light
  • Problems focusing on close work
  • Problems seeing objects to the side and out of the corner of the eye
  • Tunnel vision

People with angle-closure glaucoma may have these more severe problems that need care right away:

  • Eye pain
  • Facial pain
  • Blurred or cloudy eyesight
  • Redness and swelling of the eye
  • Pupil(s) that do not react to light
  • Swollen eyelids
  • Tearing
  • Nausea or vomiting


  • Angle-closure glaucoma. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/angle-closure-glaucoma.
  • Gedde SJ, Lind JT, Wright MM, et al; American Academy of Ophthalmology. Primary Open-Angle Glaucoma Suspect Preferred Practice Pattern Guidelines. Ophthalmology. 2021;128(1):P150-P192.
  • Glaucoma. National Eye Institute website. Available at: https://www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases/glaucoma.
  • Primary open-angle glaucoma. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/primary-open-angle-glaucoma.
  • What is glaucoma? American Academy of Ophthalmology website. Available at: http://www.aao.org/eye-health/diseases/what-is-glaucoma.
  • What is glaucoma? Glaucoma Research Foundation website. Available at: https://glaucoma.org/learn-about-glaucoma/what-is-glaucoma.


  • Daniel A. Ostrovsky, MD
Last Updated:

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.