Treatment Options for Keratoconus

Keratoconus treatment falls into two categories that work together rather than as alternatives: treatments that correct your vision, and treatments that slow or halt the underlying progression of the cornea's shape change. Most patients need both at different stages.

Slowing progression: corneal cross-linking (CXL)

Corneal cross-linking uses riboflavin (vitamin B2) eye drops combined with ultraviolet-A light to strengthen the structural collagen fibres of the cornea, making it more resistant to further thinning and steepening. It was first shown to halt keratoconus progression in a small pilot study over 20 years ago (Wollensak, Spoerl & Seiler, American Journal of Ophthalmology, 2003), where progression stopped in every treated eye and the corneal shape actually improved slightly in most. Since then, a properly randomised controlled trial (Wittig-Silva et al., Ophthalmology, 2014) confirmed the effect over three years: eyes that received cross-linking flattened and their vision improved, while untreated eyes in the control group kept steepening and losing vision. Cross-linking does not reverse keratoconus or restore normal corneal shape — its role is to stop things getting worse, which is why it works best when done as early as progression is confirmed, not after vision has already been badly affected.

Correcting vision: glasses and contact lenses

In early keratoconus, glasses or standard soft contact lenses can often still give clear vision. As the cornea becomes more irregular, ordinary lenses no longer sit correctly on its surface and vision becomes harder to correct this way. This is where specialty contact lens design becomes central to management — rigid, scleral or hybrid lenses are shaped to vault over the irregular cornea and create a smooth, regular optical surface in front of it, restoring vision that glasses alone cannot. Most people with keratoconus, even fairly advanced cases, can achieve excellent vision this way without surgery. You can read more about our approach on our Rose K and scleral lens page.

When surgery is needed

A minority of patients — usually those with very advanced disease, scarring, or a cornea too thin or irregular to fit successfully with specialty lenses — need a corneal transplant (keratoplasty). This is genuinely a last resort in modern keratoconus care, reserved for cases that cannot be managed any other way; the great majority of our keratoconus patients are managed successfully with cross-linking and specialty lenses alone.

Ready to talk about your options? Book a keratoconus assessment at Rose Optometry, Hamilton.

References

Wollensak G, Spoerl E, Seiler T. Riboflavin/Ultraviolet-A-Induced Collagen Crosslinking for the Treatment of Keratoconus. American Journal of Ophthalmology. 2003;135(5):620-627. PMID: 12719068.

Wittig-Silva C, Chan E, Islam FMA, et al. A Randomized, Controlled Trial of Corneal Collagen Cross-Linking in Progressive Keratoconus: Three-Year Results. Ophthalmology. 2014;121(4):812-821. PMID: 24393351.

This article is general information, not a substitute for a personalised assessment. Whether cross-linking, specialty lenses, or a combination is right for you depends on your individual corneal shape, thickness and stage of progression.