Often, a latent vision defect will only become apparent after working with a computer screen.
Those who wear single vision lenses bend their heads approx. 45° towards the screen, taking an unnatural head and body position. On the other hand, people wearing other kinds of lenses sit too close to the screen in order to see clearly. All of these incorrect postures can lead to neck and back complaints, headaches, and eye irritation.
People who wear progressive lenses have a tendency to lift their heads up approx. 20° when working at a computer. This is the only way that they can get to the desired intermediate and near ranges of the progressive lenses. This can lead to tension in the shoulder and neck area, since it is impossible to have ergonomic posture while wearing progressive lenses.
The lens industry has therefore developed near comfort lenses or indoor lenses in order to make it possible to work comfortably and ergonomically at near and distant ranges. These lenses offer greater depth in the field of vision than single vision lenses do. This makes it possible to work in a much larger radius.
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| Reading (books, newspaper) | Reading, Working on a laptop, extnesive close-up work, playing chess |
Reading (books, newspaper), working on a laptop, extensive close-up work, playing chess PC, shopping, playing the piano or other musical instruments |
Watching television, playing certain sports such as golf. Specially suitable for office workers, teachers, dentists, architects, and pharmacists |
Watching television, specially suitable for all office workers, teachers, dentists, architects, and pharmacists |
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| Single vision | Addpower | Lecture B | Tact | Hoyalux iD Workstyle |
