The amount of time it takes to adjust to wearing multifocal lenses can vary depending on the individual, but typically, it takes 4 to 6 weeks. Your eyes will initially not be able to concentrate or make seamless transitions between the many prescriptions while looking from near to far since there are multiple prescriptions for different distances in these lenses. Moreover, you can notice shadows surrounding what you're looking at, which will impair your overall eyesight. The more frequently you can wear your new multifocal contacts, the easier it will be for your eyes to adjust between the two powers.