Can I wear my glasses for near and far distance?
Yes, you can wear glasses for both near and far distance. Some eye conditions entail that you might need two prescription powers for both myopia (short-sightedness) and hyperopia (long-sightedness). In these cases, bifocal lenses or multifocal lenses are required. While Single vision lenses are used to correct only one common eye refractive error at a time, bifocal lenses and progressive lenses can combine multiple prescription powers so you can see both near and far. Bifocal lenses and multifocal lenses can also be useful for conditions such as presbyopia.
Progressive lenses vs bifocal lenses
Bifocal lenses are actually a traditional version of progressive lenses. This traditional type of lenses were used to correct only two different eye prescriptions, and so were referred to as ‘bifocal lenses’. Bifocal lenses were easy to spot because they had a line dividing the lens in two; with the upper half for distance vision, and the lower half for near vision. For many people, bifocals were considered ugly and could even be less convenient than two separate pairs of glasses, as wearers would suffer from “image jump” when their focus flickered between the two halves of the lens.
Modern progressive lenses (also known as "no-line bifocals" or "no-line trifocals") eliminate this uncomfortable jump by having a smooth and consistent gradient between differing lens powers. This is why progressive lenses are also sometimes referred to as “multifocal” or “varifocal” lenses, because they offer all of the advantages of the old bifocal or trifocal lenses without the inconveniences and cosmetic drawbacks.
Progressive lenses are a very good option for comfortably combining multiple prescription powers in one pair of glasses. If you have multiple prescriptions for different distances, are juggling your life between two or three pairs of glasses, or are beginning to find that no single prescription is correcting your vision to a high enough standard for all daily activities, then progressive lenses could be the answer.