Progressive lenses help against the same problem as bifocal lenses, it is known as presbyopia, or presbyopia. The progressive lenses are distance vision placed in the top half of the lens while seeing close up is done by the lower part. In the transition area between the upper and lower half of the lens, the user gets a clear picture of the area that is neither far away or very close.Another advantage is that this type of lenses do not contain any lines in the visual field, as is the case with multifocal lenses.
Progressive lenses help against the same problem as bifocal lenses, it is known as presbyopia, or presbyopia. The progressive lenses are distance vision placed in the top half of the lens while seeing close up is done by the lower part. In the transition area between the upper and lower half of the lens, the user gets a clear picture of the area that is neither far away or very close.Another advantage is that this type of lenses do not contain any lines in the visual field, as is the case with multifocal lenses.
