Spring hinge temples can be quite comfy. But because the spring holding the temple is a "moving part," the temple can degrade and, eventually, break over time.
Following cataract surgery, the perfect power for reading glasses varies depending on an individual and her/his activities. While a one common diopter strength is sufficient for most people, some may need a higher or lower power.
Glasses made to conform to a recent eye doctor’s prescription are essential for complete astigmatic and refractive correction, a challenge different from, and less expensive than, the challenge solved by reading glasses.