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Ari


08/29/2012

What are advantages and disadvantages of progressive glasses?

Someone suggested me to buy progressive glasses for my grandma. My grandma has presbyopia and myopia. Are progressiveness glasses good for her. What are pros and cons of progressive glasses? Is there anyone who can help me?
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  • Isabelle duncan

    08/29/2012

    Progressive glasses are made for people both suffering myopia and presbyopia problems. This kind of glasses can help people see near distance and far distance clearly meanwhile without changing different glasses. Except this advantage, progressive glasses are also popular among the old people because progressive glasses are not associated with old age like reading glasses. However, progressive glasses cannot provide you wide enough fields of vision. So people with progressive glasses have to turn their head when they talk with someone who are on the side.
  • Jason warren

    08/29/2012

    progressive glasses is characterized by having a continuous diopter from far to near, so people can see the things in different distances clearly although they have presbyopia and myopia. On one hand, it can be coordinated to regulate the human eye, reducing visual fatigue. Importantly, progressive glasses can make the light continuous, reducing the adjustment disorder and causing the development of myopia. Simultaneously, the appearance of these glasses are similar with the ordinary glasses,so they can be easily accepted. On the other hand, although they have lots of advantages, there are also many problems. Such as, design problem, a small field of view (both sides having blind spot) and the high cost. But for your grandma, perhaps, It is appropriate to wear the progressive glasses.
  • Zoe

    02/12/2015

    Well, from what I know, it is true that progressive sunglasses could be great use to you. Because with a pair of progressive glasses, your vision could be under control, and your process of getting nearsighted could be slowed down. However, progressive glasses would make you addicted to glasses and you cannot take them off unless you try to get lasik eye surgery. Just try to make proper use of your eyes and be careful.
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  • Jackson

    08/29/2012

    The progressive glasses is one kind of bifocal reading glasses, which is useful for people who is over 40 years old to see far distance and nearby with one pair of glasses. In other words, it's suitable for people who have both myopia and presbyopia. Every coin has two sides, the same as progressive glasses. There are some advantages and disadvantages about progressive glasses. Firstly, there are no division lines on progressive lenses to avoid the discontinuities in the visual field. On the contrary, the disadvantage is that the vision view is not wide and not that clear. And it takes time for wearers to adapt it because of it would be a little bit inconvenient in the beginning.
  • Caitlin

    08/30/2012

    Progressive spectacle lenses, also called progressive addition lenses, are used in eyeglasses to correct presbyopia and other disorders of accommodation. Thus, wearers can adjust the additional lens power required for clear vision at different viewing distances by tilting their head to sight through the appropriate part of the vertical progression. And the lens location of the correct addition power for the viewing distance usually only requires small adjustments to head position, since near vision tasks such as reading are usually low in the visual field and distant objects higher in the visual field. The other merit of progressive glasses is that this specialized lens surface provides an accurate power distribution for both near and distant vision and reduces the number of optical aberrations. But, progressive lenses suffer the disadvantage of the power progression creating regions of aberration away from the optic axis, yielding poor visual resolution (blur), which varies in relation to the quality of the lens. What else, because of the compromise in vertical range of undistorted vision, there is an inherent impact on peripheral vision with progressive lenses which is more obvious than that which is found in single vision lenses.
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