As we yield to the work of the Holy Spirit, we can fill our minds with things that are "true, and honorable, and right, and pure, and lovely, and admirable" (Philippians 48).
The first pair of blue-light blocking glasses I ever owned were giant and frankly kind of ugly, but I wore them because looking at computer screens all day was giving me terrible headaches. Luckily the glasses industry has come around and realized that they can make blue-light blocking glasses that are stylish and useful!