Can overtightening optical tags damage the lens?

If optical tags are tightened too much, they can indeed potentially damage the lenses, especially when the lens material is fragile or the coating is sensitive. Specifically, over-tightening the tag can bring the following risks:

Lens deformation: If the tag is tightened too much, the applied pressure may cause the lens to deform, particularly for softer or thinner lenses. This can affect the optical performance of the lens, resulting in blurred or unclear vision.

Coating damage: Some optical lens coatings are relatively fragile. Over-tightening the tag may scratch, peel, or create micro-cracks on the coating.

Lens breakage: In extreme cases, an over-tightened tag may apply enough stress to the lens to cause cracks or breakage, especially if the lens already has any minor defects or has been subjected to significant pressure.

To avoid these problems, it is recommended to ensure moderate tightening when installing or adjusting optical tags and to avoid excessive force. Use professional tools for installation to ensure the lens is not subjected to extra pressure. For eyewear optical devices, it is best to have adjustments or repairs done by a professional optical store.

Overall, over-tightening optical tags can indeed affect the lifespan and functionality of a lens, and moderate adjustment is key.