ICL or IOL's are never a better alternative to PRK or LASIK. ICL and IOL's manipulate the best part of your eye, that's your lens. Your lens is responsible for a great percentage of your vision. Think of this anatomical body part of the eye like the lens iris in your camera. It has the ability to focus from things that are close to things that are far away. If you have Myopia, that is a refractive error that can be corrected with glasses, contact lens or corneal surgery. If you keep your cornea then you maintain the ability to focus on things at different distances. If you manipulate your lens, you lose the ability to focus. The lens will correct for only a specific distance (16 in. if you want to correct seeing up close or 20 ft if you want to see far away). You will then need different prescriptions to see at different distances.
The visual pathway starts at your cornea (PRK and LASIK) and then goes through your pupil to your lens (IOL or ICL). The first procedure reshapes your cornea while the second one takes the lens OUT!! The better alternative will always be to keep what works instead of getting something mechanical. You're crazy if you want to mess with your lens.