Varifocal lenses slightly alter your peripheral vision due to the power changes that occur at the edge of the lens. Having a good lens design can help eliminate this.
New to varifocal
Varifocal lenses are very easy to adapt to providing that all the measurements are taken correctly during the dispensing process
Getting used to varifocal glasses
Top tips to help you get used to varifocal glasses
Talk to your local optician. Sometimes a simple adjustment is all you need to adjust to your new varifocal lenses.
Turn your head to point in the direction of what you want to look at rather than just moving your eyes
Turn your head