Photochromic Gray Bifocal Reading Glasses with Lightweight TR90 Frame

These Photochromic Gray Bifocal Reading Glasses feature a clear top part of the lens and a bottom section available in your choice of magnification, making them perfect for reading your favorite book, newspaper, or work. The lenses have a photochromic function, transitioning from clear indoor reading glasses to sunglasses when exposed to outdoor sunlight.

The versatile design allows you to use these as normal photochromic sunglasses as well, providing radiation and UV protection. These Transition Bifocal Gradient Sunglasses Readers Reading Glasses are made with a lightweight TR90 frame that offers UV400 protection and anti-radiation properties.

The dimensions of these glasses are as follows: frame width of 13.7cm (5.4in), arm length of 14.1cm (5.5in), lens size of 5.1x4.3cm (2.0x1.7in), and a bridge width of 1.8cm (0.7in).

The photochromic gray bifocal reading glasses lenses are made of optical glass containing silver halide microcrystals. The lenses operate on the principle of phototropic reversible reaction, where they darken in response to sunlight and UV irradiation, completely absorbing ultraviolet and visible light. When the light source is removed, the lenses can restore to their colorless, transparent state.

These glasses are imported, offering a convenient and versatile solution for those who require bifocal reading assistance. The photochromic function ensures the lenses adapt to various lighting conditions, providing both clear indoor reading and effective sun protection outdoors.

Whether you're reading a book, working on a project, or enjoying outdoor activities, these Photochromic Gray Bifocal Reading Glasses are designed to enhance your visual experience and meet your diverse needs. The combination of bifocal and photochromic features makes them a practical and stylish choice for those seeking a versatile eyewear solution.

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