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Corneal Cross Linking is a new method to treat Keratoconus or bulging eye disorder. CXL in children is now an option.
We know that in keratoconus the corneal collagen fibers are decreased in number and volume. This decreases the tensile strength of the cornea to hold back the internal pressure of the eye. We can increase the young’s modulus or the rigidity of the cornea with corneal cross linking. This intervention is more challenging in extremely thin corneas. We need to protect the inner cornea and the inside of the eye from the UV radiation we apply. It has been determined that 400 microns is a safe limit. If the cornea is thinner than that we need to strategize. Also in epi off Corneal Cross Linking we remove the top 5o microns when we discard the epithelium. Hence the cornea has to be more than 450 microns to start safely. Wait there is one more factor we need to be aware of. When we apply Photrexa with Dextran for 30 minutes it causes corneal to become compact or thinner.
Please contact us to get screened or a seek a second opinion at one of our keratoconus centers.
I am tired of wearing glasses and contacts. My vision is affecting my work. I am worried I may loose vision. I want to preserve my precious vision!