What indicates that the fitting triangle has proper alignment?

The indication that the fitting triangle has proper alignment is evident when there is even pressure on the bridge of the nose. The fitting triangle is formed by the three points of contact: the bridge of the nose and the two temples. When the fitting triangle is properly aligned, the pressure along the bridge is balanced, contributing to overall stability and comfort while ensuring that the eyewear properly sits on the face.

Even pressure means that the weight of the eyewear is distributed evenly across those contact points, which can help prevent slippage and discomfort while maximizing visual clarity. When the bridge fitting is correct, it not only improves the aesthetic appearance of the eyewear but also enhances its functional performance.

While comfort behind the ears and consistent temple width are important considerations for overall fitting, they do not directly address the specific alignment of the fitting triangle. Thus, ensuring even pressure on the bridge is the critical indicator of proper alignment in this context.