Crutch glass assembly.

Abstract

There are a number of diseases that can compromise with the vision of an individual. For example, there are diseases that directly affect the movement of eyelids, in turn, affecting vision. Ptosis is one such disease that affects the functionality of the muscles that control the movement of the eyelids or their nerve supply. Consequently, an upper eyelid of the individual naturally droops or falls hindering the vision of the individual.