From where is multifocal height usually measured?

Multifocal height is typically measured from the lowest portion of the eyewire. This measurement is crucial because it ensures that the multifocal segment of the lens is positioned correctly to provide optimal vision for the wearer. The eyewire outlines the shape of the lens and serves as a reference point for lens fitting. By starting from the lowest portion of the eyewire, the technician can accurately position the multifocal segment to align with the visual needs of the wearer, allowing for a smooth transition between different focal areas such as distance, intermediate, and near vision. Understanding the correct point for measurement helps in creating a well-fitted pair of glasses that enhances comfort and usability for the user.