Premium Progressive Series Optical Lens

Progressive lenses, also known as progressive multifocal lenses, are lenses with multiple focal points that are commonly used to correct vision problems and are particularly suitable for middle-aged and elderly people. The design inspiration for this type of lens comes from the shape of an elephant's nose, which continuously increases the curvature of the front surface of the lens from top to bottom, thereby achieving a corresponding change in refractive power.

product details

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

Multi focal design:

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.

High comfort:

The wearer does not need to frequently adjust the focal length, reducing visual fatigue and eye adjustment burden, and improving the comfort of wearing.

Wide applicability:

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

Adaptation period:

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.

Correct use:

Long distance zone: When driving or looking, slightly retract your chin and keep your head level, looking through the center of the lens slightly higher.

Mid distance zone:

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.

Close range area:

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 4.

Avoid using blurry areas:

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