what is the difference from wavefront lasik from conventional lasik?

wavefront is customized lasik to address high order aberrations. Not everyone qualifies, but if you do, its a good idea to go for that. Improved visual accuracy, especially at night. From what I read, wavefront results in at least a full line better corrected vision vs. conventional lasik. The difference at night is even more. Wavefront will only improve in the future and I can see almost everyone having that then. Those with severe myopia may get IOLs instead instead of conventional lasik.

Wavefront or custom LASIK technology has been around since 1998. It is specifically for those patients who would end up unhappy if a standard LASIK procedure is done on them. These patients are detected during their LASIK screening and evaluation, by certain specific indications which would arise on the topography and aberrometry tests. It is also a technology for those who have undergone LASIK on poor obsolete lasers or have undergone PRK or RK and are unhappy with their results especially night vision.
However, the success of laser vision correction or LASIK depends on a multitude of factors, primary being the expertise of the doctor along with a good laser technology in an International standard set up of hygiene and care with stringent eligibility criteria.
You can learn more on wavefront on the link below.
http://www.perfectwavelasik.com/princi.asp
Dr Shroff, MD