Purpose: To present a case with progressive keratoconus after treated with radial keratotomy (RK) and was undergone corneal collagen crosslinking (CXL) for preventing the progress of keratectasia
Method: Case report
Result: A progressive keratoconus case who previously treated with RK was undergone corneal collagen crosslinking (CXL) in her left eye for preventing the progress of keratectasia. After the CXL procedure performed at another clinic, best-corrected visual acuity (BCVA) of her left eye decreased from 0.9 to 0.6 Snellen lines in an 8-months follow-up. Pre CXL maximum keratometric power (P-Kmax) was also increased from 52.1 to 57.16 Diopter (D) at the 8 months after CXL.
Conclusion: Applying CXL on the keratoconic patient previously treated with RK must be questioned.