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Conditions

Ophthalmology · Eye health

Keratoconus

Understand corneal thinning, monitoring and ways to stabilise vision.

Editorial publication · Medical review pending.

Understand

Keratoconus is progressive thinning and distortion of the cornea into a more cone-like shape.

Possible symptoms

Blurred or distorted vision, irregular astigmatism, frequent prescription changes, glare and light sensitivity may occur.

Causes and associated factors

The exact cause is uncertain; genetic and environmental factors contribute, with links to allergy and eye rubbing.

Diagnosis

Eye examination and changing refraction suggest the diagnosis, often in teenagers or young adults.

Tests

Slit-lamp examination, corneal topography and tomography measure corneal shape and thickness.

Course of the condition

Progression varies and often slows with age; corneal scarring can develop in advanced disease.

Care options

Glasses or contact lenses correct vision; cross-linking can slow documented progression and transplantation is reserved for selected advanced cases.

When to consult

Seek assessment for frequent prescription changes, distorted vision or a family history.

Urgent help

Sudden painful visual deterioration may indicate corneal hydrops and needs urgent eye assessment.

Questions for your doctor

  • How will the diagnosis and stage be confirmed?
  • Which part of my vision is at risk in my case?
  • Which options, limits and complications should we compare?
  • What eye follow-up and monitoring should I plan?
  • Which visual changes require urgent assessment?

Continue reading

A procedure linked to a condition does not establish an indication for your individual situation.

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