I had Symfony lenses put in May, 2017, and am still not seeing clearly. I could live with my right eye, but can't see anything at a distance with my left. Have had YAG, a small Lasik correction & Vitrectomy. Nothing has helped. Can't even see clear out of prescription glasses. Wish I had never gotten them.
If you have good vision near, but your distance vision isn't great even after a few weeks, that suggests the most likely explanation is that the surgery left you nearsighted, that the lens power was off. Unfortunately the lens power isn't something can determine exactly beforehand, it is an estimate based on statistics of past patient's eye measurements. Usually its fairly accurate for most people, but not all, those who had high prescriptions before surgery are more likely to have the lens power be off. Did they tell you your refraction, the prescription they'd use to correct you with glasses/contacts?
During the first couple of months after surgery, it is possible while the lens is still healing in place for it to move forward or backward a bit, to make your more or less nearsighted, but it seems doubtful there will be much of a change at this point. If you are finished with drops, if they considered your eyes healed will enough, then its also unlikely there is any healing impacting your vision (and that usually would impact visual quality at all distances, rather than giving a temporary myopic shift).
Usually people with the Symfony, or multifocals, tend to have good distance vision at first and any neuroadaptation makes their near vision clear. I had seen at least one poster whose distance vision was a bit subpar at first and then saw it improve with adaptation, but unfortunately the odds are you were left nearsighted.
Many people whose lens power is off with a premium lens get a laser enhancement after their vision has stabilized. Others who don't mind wearing correction sometimes, like for driving, just wear contacts or glasses.
They can't know during the operation if a YAG will be required, since a YAG is used to treat PCO which happens afterwards. It used to be most people developed PCO, but with modern lenses and surgical techniques its only a small minority who ever need a YAG. Although some people need it soon after surgery, I recall one estimate of YAG being done on average around 2 years postop. The cloudiness from something like PCO would impact vision at all distances.