help-lens-type

GLASSES WITH SINGLE VISION LENSES

Single vision lenses offer only one correction. They are most often used in general purpose glasses for everyday use, including driving, but you also find single vision lenses in reading glasses or 'readers' for those who need spectacles to see near object clearly. Single vision sunglasses are almost exclusively made for general use but you can order them as readers, too.

GLASSES WITH MULTIFOCAL LENSES

Multifocal lenses (in other names: Varifocal, PAL or progressive lenses) provide all-in-one solution to correct 'presbyopia'. Presbyopia is the common condition when your eyes, from about the age of 40, start needing “additional help” to focus on closer objects, like reading a book or looking at your phone screen. Multifocal lenses combine far (distance), intermediate (e.g. computer screen) and near (reading) corrections. All these corrections merge continuously into one another, providing sharp image at all distances.

Your prescription will contain an addition (ADD) value if you need multifocal lenses.