Eye Health

Updated 25 July 2018

Symptoms of glaucoma

Vision only typically declines in the late stages. In the meantime, gradual, painless damage could be affecting both eyes.

Unfortunately, in the early stages, primary open-angle glaucoma (POAG) may not affect vision or present with any symptoms. 

Other forms of glaucoma may present with the following symptoms: 

  • Sudden loss of vision
  • Severe eye pain
  • Nausea
  • Vomiting
  • Tearing
  • Sensitivity to light

Reviewed by ophthalmologist Dr Tshilidzi van der Lecq. MBChB (UCT), Mmed (Ophth), FC Ophth (SA). March 2018.


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Megan Goodman qualified as an optometrist from the University of Johannesburg. She has recently completed a Masters degree in Clinical Epidemiology at Stellenbosch University. She has a keen interest in ocular pathology and evidence based medicine as well as contact lenses.

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