Select from options: Continue writing the next sentence.

How to adjust eye glasses
Stand in front of a mirror and look straight ahead.
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.

OPT: i. Find the correct " point of focus. " the point of focus over your eyes should be the center of the bridge of your nose. ii. All adjustments to your eyeglasses should be made to achieve this optimal position. If you have a bifocal lenses, the line should sit at the lower eyelid. iii. Try situating them so the other side is facing you. Adjust the upper and lower lenses as necessary. iv. Position the glasses so that they face the light source. As you stand, you should be holding them perfectly still.
Answer:
ii.