If you are 30 then CXL has limited benefits..corneal thinning won't progress much so it is better to use suitable contact lenses in place of CXL

Cxl/c3r ( collagen cross linking ) is a procedure generally done when your cornea becomes thin To prevent the protrusion of cornea further Yes as we age corneal thickness reduces but at 30 years won't be significant and harmonal changes also do have impact especially during menopause But if your doctor have advised it so you go ahead with the procedure

Please go ahead if doctor has advised

As you are 30, you can under go c l.

If the doctor has advised you CXL then you must go for it . It will stop the further progression of your ectatic corneal disease usually done for keratoconus .. go for it ,, for more detail discuss you can kindly connect