How is keratoconus treated in Singapore?

Hi Santhiya Corneal graft rejection is a condition that can occur if your body's immune system recognizes the graft as 'foreign' and then starts attacking it. Nowadays, there are several kinds of corneal transplant operations that can be performed for keratoconus. Usually, we try to perform 'deep anterior lamellar keratoplasty' (DALK) where the abnormal collagenous stroma is replaced but your own inner corneal lining (endothelium) is preserved. Sometimes, the entire thickness of cornea may need to be replaced in a procedure called 'penetrating keratoplasty' (PK).

Corneal collagen crosslinking with LASIK or SMILE is relatively new, and the true beneficial effects, if any, may not be quantifiable or known for some years yet. In essence, after the cornea has been reshaped (through LASIK or SMILE), vitamin B2(riboflavin) is applied to soak the cornea, and then ultraviolet light is shone on the soaked cornea. The entire crosslinking process adds about 3 minutes to the entire refractive procedure. We do know that after crosslinking, the cornea becomes stiffer (stronger in a way). There is no other extra effect known to be caused by the crosslinking.