Multifocal lenses are lenses that gradually increase their refractive power from top to bottom. They have a smooth surface without any demarcation lines, as is the case with bifocals.
A person who wears such lenses can see objects at any distance clearly and clearly simply by slightly changing the position of the head or eyes. This is very convenient for those who often work at the computer or read a lot, since they do not need to constantly change glasses to different diopters.
However, multifocal lenses also have their disadvantages. For example, they may be less comfortable for people with astigmatism or other vision problems because they may distort the image. Additionally, they may not be suitable for people who need high clarity of vision at close range.
Overall, multifocal lenses are a good choice for those who need glasses for computer use or reading, but not for all occasions.
Multifocal Lenses are lenses that have a unique optical characteristic. They have a gradual increase in refractive power from top to bottom. This means that a person wearing such glasses can see objects at any distance without changing the position of the eyes.
Unlike bifocal lenses, where there is a clear line of separation between the upper and lower segments, multifocal lenses have a continuous change in refractive power. This allows a person to see clearly at all distances without having to constantly change the position of the eyes.
Additionally, multifocal lenses can be made from a variety of materials, such as plastic or glass. Each material has its own advantages and disadvantages, so the choice of material depends on the individual needs and preferences of the user.
However, despite all the advantages, multifocal glasses may have some limitations. For example, they may be less accurate for people with high nearsightedness or farsightedness, since these lenses cannot compensate for all optical distortions.
Thus, multifocal lenses are an innovative solution for people who need to see clearly at all distances. They avoid the need to constantly change eye position, and can be made from different materials to suit the individual needs of users.