Myopia control optical system

Abstract

An optical system having a transmission pattern comprising at least a first zone Z1 extending from at or about 380 nm to a first limit L1 between Z1, and a second zone Z2. A third zone Z3 extends from a second limit L2 between Z2 and Z3 to about 780 nm. L1 may be greater than or equal to or about 436 nm. Second limit L2 may be greater than L1 and smaller than or equal to or about 487 nm. The average transmission values T1, T2, T3, in each zone Z1, Z2, Z3 may be: T2>5*(T1+T3) / 2, with T1 the average transmission over Z1, T2 the average transmission over Z2, T3 the average transmission over Z3. T1 and T3 may be greater than or equal to or about 3% and smaller than or equal to or about 70%. T2 may be greater than or equal to or about 75%.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority from European Application for Patent No. 13305237 filed Mar. 1, 2013, the disclosure of which is incorporated by reference in its entirety.FIELD OF THE INVENTION[0002]The invention relates to an optical system having a transmission pattern specifically adapted to slow down myopia progression of the wearer and to a method for selecting an optical system as described herein.BACKGROUND[0003]The discussion herein of the background is included to explain the context of the invention described. This is not to be taken as an admission that any of the material referred to was published, known or part of the common general knowledge at the priority date of any of the claims.[0004]Myopia may have severe long term consequences on the eye that may even result in blindness. It appears that for most individuals, in particular for children, the myopia condition of the eye tends to increase with time.[0005]It is therefore ...

AI Technical Summary

Benefits of technology

The invention is an optical system that protects the eye from harmful wavelengths of natural light and slows down the progression of myopia (nearsightedness). The system has a unique transmission pattern that increases retinal Dopamine secretion and increases the pupil size of the wearer, resulting in more light reaching the retina and further enhancing the benefits of outdoor activities on myopia progression.

Problems solved by technology

Myopia may have severe long term consequences on the eye that may even result in blindness.

In particular, it has been observed that outdoors activities slow down myopia progression.

However, when individual and in particular children spend time outdoors, their eyes are also exposed to harmful light (UV, blue light).

Solar lenses protect the eyes from the harmful effects of natural light but also appear to decrease the benefits of the outdoor activities on the myopia progression.

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