ReLEx SMILE has been around only since 2011 and has only recently gained FDA approval for treatment of low myopia ( -1.00 to -8.00 D ) and has not gained FDA approval for treatment of hyperopia.
ReLEx SMILE is incapable of any re-treatments/enhancements. What happens when you need an enhancement after SMILE surgery - you would have to do a LASIK or ICL to correct any over or under-correction of SMILE surgery.
Any refractive procedure, whether SMILE or LASIK or ICL, is associated with approximately 2% of not meeting targeting outcome, in which case LASIK and ICL is capable of enhancement for which ReLEx SMILE is not.
ReLEx SMILE is also associated with a much longer visual recovery period of at least 3 weeks.
ICL has a fast overnight visual recovery and the procedure is reversible. ICL generally causes very little post-op dry eye issues.
