What are progressive eyeglasses? It’s obvious that is one kind of glasses that use of progressive lenses. Patients having both nearsightedness and presbyopia are really unfortunately that they can neither view clearly distant objects nor nearby materials. Progressive spectacles are a special solution to this problem. While most patients know those potential benefits brought by wearing progressive lenses glasses, those with little experience may do not know how to use these glasses in a right way. Progressive reading glasses differ considerably in lens design and thus power provision. Even though things or objects at all distances are within the capability of progressive lenses, how to manage the viewing tasks is still critical. Without a proper means, those benefits could not be gained. In some cases, even unwanted side effects or problems will be caused. This is quite understandable that each kind of complex device or instrument will certain require more skills of use and management. Progressive lenses spectacles need similar care. (more…)