It appears that TruVision is not a provider of Lasik, but a provider of Lasik marketing services. On their website they state "TruVision is in the business of marketing vision correction services and is not licensed to and does not provide such services."
You can review their warranty information at
TruVision Lasik Warranty
It would appear that you need to contact TruVision through thier toll free number and seek a retreatment exam with their affiliated doctor. There are many limitations and exclusions to this warranty and it would be impossible for us to know if you would be covered.
It is always important that a provider of Lasik be willing make a long-term committment to the patient, but "warranties" can be problematic. You may want to read
Lasik Lifetime Committments and Warranty.