Premium Progressive Multifocal Lenses from China Suppliers - High-Quality Optical Lens Factory
Historical Background
The concept of progressive multifocal lenses was first proposed by Owen Aves in 1907, inspired by the shape of an elephant's nose. This type of lens has a high usage rate in Europe and America, and has gradually become popular in China in recent years.
Through the above description, we can comprehensively understand the definition, characteristics, usage methods, and historical background of progressive lenses, which can help us better choose and use this vision correction tool.
Characteristic
Progressive lenses have multiple focal points on the same lens, gradually changing from the far zone to the near zone, avoiding the obvious boundary lines of traditional bifocal lenses and reducing visual jumping and wearing discomfort.
The wearer does not need to frequently adjust the focal length, reducing visual fatigue and eye adjustment burden, and improving the comfort of wearing.
Suitable for people with vision problems such as farsightedness, myopia, and presbyopia, especially for middle-aged and elderly people over 40 years old, students who use their eyes for a long time, and white-collar workers.
Usage and Precautions
It may take about a week to adapt to wearing progressive lenses for the first time, during which you may feel dizzy. It is recommended to start with static activities and gradually transition to dynamic activities.
When driving or looking, slightly retract your chin and keep your head level, looking through the center of the lens slightly higher.
When viewing a computer screen, look slightly lower in the middle of the lens and adjust the neck position slightly until the image is clear.
When reading a newspaper, place it in front of you, slightly extend your chin forward, and adjust your gaze downward to the appropriate mirror area.
The areas on both sides of the lens are areas of varying brightness, and the field of view is relatively blurry. It is recommended to rotate the head and eyes as much as possible for clear viewing.
