Knowledge
Choosing the right lenses for glasses is non-negotiable. It affects how clearly you see, how comfortable your eyewear feels, and how well your lenses hold up in real life. Yet many buyers only compare refractive index numbers (like 1.67 or 1.74) or pick a "blue light lens" without checking the basics: material strength, optical clarity, coatings, and daily use scenarios.
06/02/2026