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Keratoconus is a disease of the cornea that often appears in adolescence or young adulthood. The cornea — normally well rounded — gradually thins and deforms into a cone shape, which makes vision blurred and distorted. The good news: caught early and monitored regularly, keratoconus is well managed in the great majority of cases. Here is the essential to know.
What signs should alert you?
Certain signs come up often:
- blurred or distorted vision that is not well corrected by glasses;
- frequent changes of prescription (you redo your glasses often);
- halos, glare, sensitivity to light, sometimes double vision in a single eye;
- a contributing background: repeated eye rubbing, allergies, family history.
These signs are not specific: only an eye examination can confirm the diagnosis.
Why early screening changes everything
Keratoconus progresses mainly in young people. The earlier it is identified, the more it can be monitored closely and acted upon before vision deteriorates. That is why, when vision becomes distorted in a teenager or young adult, an assessment is recommended.
How is the diagnosis made?
The diagnosis is based on examination of the cornea and, above all, on corneal topography : a painless, quick examination that “maps” the curvature of the cornea and reveals deformations, even early ones. It is the reference examination to confirm keratoconus and monitor its progression over time.
What solutions for better vision?
Management depends on the stage and on each eye:
- in the early stages, glasses or contact lenses may be enough;
- when the deformation becomes more bothersome, custom-fitted lenses (rigid, scleral lenses…) often make it possible to regain clear vision — fitting them requires specific expertise;
- in some cases, your ophthalmologist may discuss with you the options for stabilizing the cornea.
The choice is made case by case, after evaluation — hence the importance of personalized advice.
Key takeaway
Keratoconus is not inevitable: detected early and monitored regularly, it is manageable in the great majority of cases. If your vision is becoming distorted or you change glasses often, an assessment with corneal topography brings clarity.
Dr Hassan Oulehri, ophthalmologist in Fez, Morocco, carries out keratoconus assessment and corneal topography. To learn more or book an appointment, you can message us on WhatsApp or call 0615 55 71 41. Learn more about keratoconus management in Fez, Morocco.