Progressive lenses are usually prescribed for those in the age group 40 to 50 years, who develop a condition called "presbyopia" when there are problems with reading and other activities that require near vision. While reading glasses can solve this problem, remote objects can become blurred.
It is cumbersome to switch glasses, one for near and one for distant vision and progressive lenses address this issue. Also called multifocal or not dual-line focus, they allow you to see objects both near and far through the same lens, which makes them a practical option.
You can buy these lenses from various online sites like https://kjolberg-kontaktlinser.no/. But before buying these lenses it is important to take the suggestions of your eye specialist.
Basically, multifocal combine both requirements with near vision in the bottom half and distance vision on the top half glasses. As the mixture is progressive, vision is the seamless progression between near and far objects.
Only one pair of glasses or lenses is necessary because there is no need to carry two everywhere. For those who have to change jobs frequently, it is convenient that the distortion is minimized. It is a natural solution for presbyopia and compared bifocal trifocals. Looks-wise, they are more attractive.
Choosing the right lens is important because it makes a difference in vision. There are two types: soft and hard, each with their own advantages.
The perceived disadvantage with progressive lenses is the time involved in adapting them for the first time or a new prescription. Another is the cost factor, as they may cost a little more because of the advanced technology.