Titanium Alloy Photochromic Gray Bifocal Reading Glasses

Photochromic Gray Bifocal Reading Glasses feature optical glass lenses containing silver halide microcrystals, which undergo a reversible phototropy reaction. In sunlight and under UV radiation, the lenses darken, completely absorbing ultraviolet and visible light to provide a neutral tint. When returned to a dark environment, the lenses can restore their colorless, transparent state.

These D-shaped Bifocal Reading Glasses automatically adjust the level of lens darkening to suit both indoor and outdoor use, offering UV400 protection and anti-radiation properties. The top portion of the lenses remains clear, while the bottom section is available in a range of magnification options to assist with reading your favorite books, newspapers, or magazines.

The dimensions of these Photochromic Gray Bifocal Reading Glasses are as follows: frame width of 131mm, arm length of 138mm, and lens size of 55mm x 31mm.

The photochromic nature of the lenses allows them to adapt to changing light conditions, providing a convenient and versatile solution for those who require both distance and near-vision correction. The combination of bifocal functionality and photochromic technology ensures a comfortable and efficient reading experience, whether you're indoors or enjoying the outdoors.

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