Some consider the obvious, visible line on a bifocal lens to be an advantage because the lines on a pair of bifocal lenses make it obvious to the wearer whether they are in the distance portion or the reading portion of the lens. Simply put, bifocal wearers can put their eyes above the line, or below the line, and immediately see the complete and total difference in their vision as they move from one segment of the lens to the other. Everyone can see the lines on the lenses, including the patient, making it easy for them to know which prescription they are looking through.
Since progressive lenses have no lines on them, neither the patient nor anyone else can see them. This is a cosmetic advantage for sure, and no-one else needs to know that you are wearing multifocal lenses. Unfortunately, when no-one else can see the lines on your glasses, you can't see them either! That means you must get to know which part of your glasses to look through when you want to see far things, and which part you must look through to see near objects. When people speak of getting used to their progressive lenses, they are talking about the period of time when their visual system is learning to use their new glasses automatically without any need to think about it. At Doig Optometry, we refer to this time as the period of adaptation.
If your new progressive lenses are made properly, this period should only last a few days. Most patients are using their new progressive eyeglasses comfortably and automatically within 2 to 14 days. At Doig optometry, every pair of eyeglasses is verified before being delivered, in order to ensure patients have every opportunity to love their glasses, so it's important to let us know if you are experiencing any difficulties with adaptation beyond the two week mark. Remember, we want your new progressive lenses to work for you. Our philosophy is that giving you your new glasses is not the end of our relationship with you, it is only the beginning.