[PLOPLO] Photochromic, color-changing, progressive multifocal reading glasses that are resistant to strong sunlight and harmful light, and do not chan

Description

Photochromic, color-changing, bifocal, progressive multifocal reading glasses that protect against harmful light, do not discolor under artificial light or indoors. Many customers have commented that the lenses do not discolor. The reasons are: 1. Outdoor lenses become dark gray in strong sunlight and do not discolor under artificial light; indoor lenses do not discolor. 2. Outdoor lenses become light gray in faint sunlight, making the color less noticeable. 3. Lenses do not discolor outdoors on cloudy days or when not exposed to sunlight; indoor lenses do not discolor. Principle of eye protection through lens discoloration: 1. To protect the eyes from ultraviolet rays outdoors, the lenses change color when they sense ultraviolet rays from sunlight. 1. The stronger the sunlight, the stronger the UV rays, the faster the lenses discolor and the darker they become. 2. On days with weak outdoor sunlight, cloudy or rainy days, or days with weak UV rays, the lenses do not become light gray or discolor. 3. Indoor lighting does not produce UV rays, so indoor lenses do not discolor. Three uses of glasses: 1. The middle and upper parts of the glasses have a slight prescription and are used for seeing distant objects. 2. The middle part of the glasses is used when keeping the eyes flat, such as when watching TV or using a computer. 3. The middle and lower parts of the glasses have their own prescriptions (for example, if you purchase +150 glasses, the lower part has a +150 prescription) and are used for reading. When using these bifocal reading glasses for the first time, it usually takes about a week to get used to them. However, bifocal reading glasses are not suitable for all customers. If you are not satisfied with the quality, you can submit a return request within 30 days and receive a full refund.