All adjustments to your eyeglasses should be made to achieve this optimal position. [substeps] If you have a bifocal lenses, the line should sit at the lower eyelid.
[header] How to adjust eye glasses [title] Stand in front of a mirror and look straight ahead. [step] Position the eyeglasses so the middle of the lenses are located in the center of your eyes. This is the optical center and the ideal location for your eyeglasses.