Yes - as part of your comprehensive evaluation prior to Smile / Lasik, your attending Ophthalmic surgeon will examine the posterior segment of the eye to ensure that there is no contraindications to performing your refractive surgery.
Floaters are very common in patients with myopia (short-sightedness) and in themselves are not a contraindication for surgery.
However, other conditions which are commonly associated with myopia including retinal tears, breaks, glaucoma or myopic macula degeneration are either disqualifying or require treatment prior to proceeding with refractive surgery.
Ensure that you have a comprehensive evaluation, and take the time to ask your surgeon all the questions you need. Best of luck with your surgery!