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General information about keratoconus
The first signs usually appear in adolescence or in the 20s and 30s.
Glasses and soft contact lenses do not always provide sufficient visual acuity, causing daily and professional difficulties.
Treatment options
Early stage : special gas permeable contact lenses.
Progression : corneal transplantation (earlier) or corneal tear perforation in cases.
Modern method : Corneal Collagen Cross-Linking (CCL).
Collagen crosslinking (CCL)
The goal of crosslinking is to increase the mechanical strength of the cornea and stop the progression of keratoconus.
Procedure progress:
Transepithelial laser ablation : removal of the corneal epithelium (Trans-Epithelial Surface Treatment).
UV-A irradiation : ~30 minutes of irradiation of the cornea with UV-A rays.
Contact lens fitting : fitting of the therapeutic contact lens at the end.
Aftercare : anti-inflammatory drops in the postoperative period.
Necessary conditions:
Corneal thickness > 400 μm (to protect the endothelium).
Age ≥ 18 years (with exceptions in case of rapid progression).
Optimization of results:
Clinical signs and diagnostic complex
Symptoms
Progressive decrease in visual acuity.
Double vision and shadows due to astigmatism.
Impaired vision and contrast vision in low light.
Photophobia and tearing.
Diagnostic complex
The thickness of the cornea in the center and at its thinnest point.
Radius of curvature of the front and rear surfaces.
Keratoconus index.
Surface difference index (ISV).
Astigmatism asymmetry index (IHA).
Corneal and lens astigmatism.
Zernike moments and specific coefficients.
Other services
Patient stories
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