Corneal Cross-Linking Devices Strengthening Vision Stability and Keratoconus Management
Corneal cross-linking devices play a critical role in ophthalmology, particularly for patients with keratoconus or other corneal ectatic disorders.
These devices support a minimally invasive procedure that strengthens corneal tissue by promoting collagen cross-links, helping stop progressive corneal thinning and bulging. The treatment has significantly reduced the need for corneal transplants in individuals with keratoconus, especially young patients who tend to experience rapid disease progression.
How Corneal Cross-Linking Works
The procedure typically involves applying riboflavin (vitamin B2) drops to the cornea followed by controlled ultraviolet-A (UVA) light exposure. This combination triggers biochemical reactions that form additional cross-links between collagen fibers, enhancing corneal rigidity.
Two primary techniques exist:
Epithelium-Off Protocol (Conventional): The epithelium is removed for full riboflavin penetration.
Epithelium-On Protocol (Transepithelial): The surface layer remains intact to reduce discomfort and recovery time, with specialized formulations for riboflavin penetration.