The good news is that patients with keratoconus can also benefit from procedures to improve their vision. At Vision Care Clinic, we offer a wide range of advanced techniques, which are often used in combination and coupled with corneal crosslinking to stabilise the results for the long term.
Customised laser eye surgery:
For some patients, combined customised laser eye surgery and cross-linking is beneficial. Firstly, laser eye surgery is used to reshape the cornea and make it more regular, improving the quality of vision in glasses. Cross-linking is then used to stabilise and strengthen the corneal tissue. After the keratoconus has been stabilised, further procedures can often be performed to reduce an individual’s reliance on contact lenses or glasses.
Intra–stromal corneal rings:
Intra-corneal stromal rings are small, transparent rings inserted into tiny channels at precise depths with a laser within the cornea. These provide additional structural support to improve the shape of the cornea and the quality of vision. These rings can be made from biological tissue, closely matching the existing cornea (CAIRS – Corneal allogenic intrastromal ring segments) or plastic (Keraring, Intacs). After the rings have reshaped the cornea, this may be followed by other procedures, such as cross-linking or laser eye surgery.
A corneal graft is performed to replace diseased or scarred tissue with healthy donor tissue. These can be performed at different depths depending on the condition being treated and the layers of the cornea affected. Keratoconus typically affects the outer and middle layers of the cornea, and the need for corneal grafts has reduced since the introduction of corneal cross-linking. Examples of corneal transplants for keratoconus include DALK (deep anterior lamellar keratoplasty), PK (Penetrating keratoplasty), BLT (Bowmans layer transplant).