In the multifocal eyewear industry, most people know that trifocal reading glasses vary from bifocal ones in a third power. A bifocal lens can handle defected vision at only two distances, while a trifocal lens is effective at providing visual aid at three visual zones.
Exactly speaking, the intermediate vision section on a trifocal lens is unavailable in a bifocal lens. Considering presbyopia and nearsightedness compromise, bifocals and trifocals are nearly the same. However, the extra visual help granted by trifocal reading glasses is quite meaningful for a unique number of people.
In some cases, the intermediate vision is also referred to as computer vision. This actually shows that the additional vision aid provided by trifocal glasses is closely connected with computer use.
In a pair of regular trifocal reading glasses, the lens section for intermediate vision is situated in the center part. Top of the section is for distance vision and the reduced part is traditionally for reading vision.
The reason is that people usually work through the lenses to perform computer tasks in an all-natural way. Progressive trifocal glasses can be found in a similar design in the facet of prescription arrangement. Additional advantages include no visible segment lines and comfortable power transition. Well, if you like the article, in that case you can login to https://www.classicspecs.com/landing/progressive-glasses and pick the glass and frame of your choice on your budget.
Progressive trifocal glasses offer an additional visual aid for computer work in a similar way as trifocal reading glasses. Improvements include removing visible lines and offering smooth power transition.