Why is edge polishing an important treatment for high minus lenses?

Edge polishing is an important treatment for high minus lenses primarily because it minimizes edge thickness. When a high minus lens is made, the edges tend to be thicker due to the concave design needed to achieve the desired optical correction for myopia. This can result in a noticeable thickness at the edges, which can be unappealing from an aesthetic standpoint.

By polishing the edges, you can smooth out any irregularities and create a more streamlined profile, which not only improves the visual appeal of the lenses but also decreases the perceived bulkiness. A thinner edge is visually more appealing and can enhance wearing comfort by reducing the weight and pressure on the nasal bridge or behind the ears. This aspect is especially significant since edge thickness can alter how the lens sits in the frame and how it interacts with light, impacting the overall visual experience for the wearer.

Polishing also contributes to improving the edge's appearance, enhancing the overall aesthetic quality, but the primary benefit in the context of high minus lenses is reducing the edge thickness to improve comfort and aesthetics.