After 40 one's near vision gradually becomes blurry. This is due to changes in the lens inside of the eye. The eye is unable to focus at near. Eye doctors call this Presbyopia. The solution for patients may include: reading glasses, computer glasses, contacts or progressive lenses. For a majority of patients, progressives lenses provide the most comprehensive solution for everyday living.
Progressive lenses are eye glass lenses that provide the wearer with distance, intermediate, and near viewing. Wearing the same pair of glasses, one can drive, look at their phones, attend a play or work on their computer. It's possible to go see someone down the aisle at the grocery and view the price tags on items. Progressive lenses eliminate the need for different pairs of glasses for different activities.
How do progressive lenses work?
Progressive lenses are often called bifocals by many patients, however; they are not as simple as a bifocal. Bifocals only have two powers, distance and reading. In today's world, bifocals are not as useful. We perform many tasks like computers and digital devices at an intermediate distance. In today's technologically driven world, we need clear distance, intermediate, and near vision.
Progressive lenses don't just have three powers, but a myriad of powers. The distance is at the top of the lens and as you move towards the bottom, more and more reading is added. The patient's complete reading power is near the bottom of the lens, and the intermediate slightly above. This mimics natural viewing distances.
There are many types of progressive lenses. The best types of progressives lenses have larger channels for viewing and less peripheral distortion. Patients no longer feel like they are viewing the world through glasses. Years ago, patients had trouble with progressive lens adaptation due to peripheral vision dizziness and fish bowl distortion. This has been eliminated with newer technology digital lenses.
Each year, progressive lens technology improves.
What are the advantages and disadvantages of progressive lenses?
The advantages of progressive lenses include convenience, flexibility, adaptation and cost. Progressives eyeglass lenses are extremely convenient because each distance you might need to see at is in one pair of glasses. There is no need to get somewhere and not have the proper set of glasses because you left them at home.
Progressive glasses lenses allow you the flexibility to switch your focus to different distances. For example, watching TV, but looking at your phone at the same time.
Progressive lenses are easy for adaptation because they do not limit any of the activities you enjoy. They can be used for everything! Exceptional vision is possible at every distance.
For those who use a computer for 8-10 hours a day, you may benefit from an additional pair of progressive lenses just for computer use. We call them computer glasses and they are perfect for your desktop or workspace.
For more information on the best spectacle lenses for you, visit our spectacle lens page.