For Multifocal, (Bifocal, Progressive), Eyeglasses only

Where you position your eyeglasses on your nose bridge helps us determine your Seg Height, or the transition point, between your near and far power components of your lenses

Lower down your nose bridge: Typically for reading glasses only

Middle of your nose bridge: Most common position for eyeglasses wearers

Higher up on your nose bridge: As high on your nose as possible