On the contrary, photochromic lenses are the most beneficial spectacle lenses in modern-day lifestyles.  Photochromic lenses can be very helpful for the eyes as they protect your eyes from harmful UV radiation while certain brands of photochromic lenses also guard the eyes against blue light from modern-day devices and LED lighting. . Hence, they also protect your eyes against harmful blue light exposure. Therefore, photochromic lenses are not bad, rather they are good for the eyes.