When you need eyeglasses, it is evident to you, and you either already have glasses or see your eye doctor get eyeglasses and optimize your eyesight.

However, if your current eyeglasses don't seem to help you see as well as you should, you may need to upgrade your lenses to a more powerful prescription.

It may be helpful to learn more about bifocals before you visit your doctor.Bifocal lenses are a type of lens with two focal points, wherein one portion is meant to view distant objects.

A few different types of bifocals are available, such as flat-top, round seg, blended, and executive bifocals.

Round seg, or round bifocals, allow the wearer to reach the segment's reading area more easily.There is a range of types of bifocals, and your eye doctor can help choose the best bifocal lenses for your vision prescription after an eye examination.

One of the most common reasons is presbyopia, the gradual decrease in the ability to focus on near objects and reading small print.