Types of Eyeglasses
Our Markham Optometrists at Unionville Optometry offer eye exams and can determine the proper type of eyeglasses necessary to help correct your vision.
We carry numerous brand name eye care and eyewear products. Here is an overview of some of the different eyeglass lens types we offer for prescription eyeglasses.
Single Vision Eyeglasses
“Single vision” means that the prescription in the lens is designed for one specific distance. Single vision commonly refers to ‘distance eyeglasses’ and ‘reading eyeglasses’.
Distance eyeglasses are used to help see far away (driving, watching TV). Some patients with a mild prescription may only use their distance vision eyeglasses occasionally, however many patients require them all the time; and in many cases will leave them on even when they are looking at closer distances such as reading or at a computer.
Reading glasses are used for closer distances such as reading a book, looking at a menu, cell phone, and sometimes a computer. In many cases, reading glasses will blur distance vision, and will need to be removed when looking far away. It is important to note that there is a difference between the magnifying reading glasses that are sold in a pharmacy or grocery store, and glasses with a prescription dispensed by an optometrist doctor.
As opposed to single vision glasses, multifocal eyeglasses have lenses that correct for more than one distance. They include Bifocals, Trifocals, and Progressive addition Lenses (no line bifocals).
Bifocal eyeglasses have a bifocal lens that has a top portion for distance vision and a bottom portion for reading vision; separated by a line. Sometimes this type of eyeglass is referred to as a “lined bifocal”. There are different variations of bifocal eyeglasses available, and sometimes, they are made with the top portion for computer distance and the bottom portion for reading.
Trifocal eyeglasses are similar to bifocal eyeglasses however in addition to the top portion for distance and the bottom portion for reading the lens also has a middle zone that is used for intermediate distances such as computer. The distance, intermediate, and reading zones are each separated by a line.
Progressive addition lenses are sometimes referred to as a “no line bifocal”. Progressive eyeglasses have a graduated change in the lens from distance, to intermediate, to near without any lines in the lenses.
Our Markham optometrists fit all of our children’s eyeglasses with a special lens material that passes safety standard testing. In addition to being impact resistant, this lens material is also thin, lightweight, offers UV protection and includes a high quality scratch resistant coating.
If you are unsure of the type of eyeglasses you need for yourself, your child or for another family member, our eye specialists can help.
Unionville Optometry services eye patients in Markham, Stouffville, Newmarket, North York, Vaughan, Richmond Hill and Pickering, among others.
To learn more about what eyeglass lens type would be best for your, book an appointment with our Markham Optometrists Dr. David Innamorato or Dr. Krista Innamorato.