Things about Progressive Multi-focus Lenses

    Progressive multi-focus lenses are initially designed to provide a natural, convenient and comfortable correction for presbyopic patients, so that a pair of glasses can see distant, near and medium-range objects. Therefore, progressive lenses are also described as zoom lenses. Wearing a pair of glasses is equivalent to wearing multiple pairs of glasses.

    A pair of progressive multi-focus glasses, which are very successful in optometry and wearing, needs a certain adaptation period in the wearing process. Scientific understanding of this process can better improve the wearing comfortableness and enjoy the scientific achievements.

What are progressive lenses?

    Progressive multi-focus lenses are also called progressive lenses. As the name implies, a lens has multiple focal points. If the lens is divided by focus, it can be divided into single focus lens, double focus lens and multi-focus lens. The most common lenses are single-focus lenses, which have only one luminosity. Bifocal lenses are double-light lenses, which are used by many elder people to solve the problem of seeing far and near at the same time, but they have been basically eliminated because of their own major shortcomings and the gradual popularization of multi-focus.

    Progressive lenses are no-line multifocal eyeglass lenses that look exactly the same as single vision lenses. In other words, progressive lenses will help you see clearly at all distances without those annoying (and age-defining) "bifocal lines" that are visible in regular bifocals and trifocals.

    The power of progressive lenses changes gradually from point to point on the lens surface, providing the correct lens power for seeing objects clearly at virtually any distance.

    Who are suitable for progressive multi-focus spectacles:

  • Presbyopia people, especially those with far-sighted and near-sighted changes frequently;
  • People who have high requirements for beauty and comfort;
  • Persons who are not suitable for bifocal image;
  • For people over 40 years of age with myopia, presbyopia. People who are farsighted and nearsighted often need to take off their glasses or wear two pairs of glasses with different distant and near prescriptions.
  • Teenagers or children with myopia need two pairs of glasses with different prescriptions of distance and proximity.

    How to adapt to progressive multi-focus glasses at first?

  • Far-sighted objects: Look up and look at the object through the top of the lens (far-sighted area).
  • Near-sighted objects: Keep the head and horizontal plane about 45 degrees, so that the eyeball turns downward, through the lens below (near-sighted area) to see the object. If it is not very clear, slightly rotate the eyes or adjust the head position, raising the head position until you find the most ideal area to see near things.

    Discomfort that may occur at your first wear:

  • Slightly dizzy, walk shaky, go upstairs need to be careful when you are exercise.
  • Spatial sensation changes, distance judgment and depth sensation of objects change. First wearers should not drive at once and do strenuous exercise.
  • When look close, turn your eyes down, and your eyes will feel slightly uncomfortable.
  • The object becomes blurred when you are looking through the blurred area of vision around the lens. Therefore, the first wearers should turn their heads more and eyeball less. Try to look at objects in the far, near and middle distance areas.

     Items to be noticed in purchasing glasses:

    When purchase the glasses, choose the frame with higher height. Since lenses should be divided into far, middle and near areas, only higher frame can ensure a wide enough access area. It's better to have a full-rimmed frame for prescription glasses, because the higher lenses, the thicker the edges. And the full-rimmed frame groove can cover the thickness of the edge of the lens.

    Generally it takes about a week to adapt to the glasses, but the length of the adaptation period varies from person to person. Walking slower when dizziness occurs.

    Since the astigmatism region on both sides of the lens, it is not clear to see the objects on both sides when just turning your eyeballs through light, so it is necessary to rotate the neck and eyeballs at the same time to see clearly.

    When you go downstairs, keep glasses low and try to look objects from the upper remote area.

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