Oscillatory squeeze film analysis of soft contact lenses

The mechanical properties of a soft contact lens are of crucial importance to the design and functionality of the lens. To be fit for purpose a lens must be both comfortable and robust; the lens must be rigid enough to allow insertion into the eye, yet flexible enough to allow comfortable on-eye movement. The ability of the lens to revert to its original shape, when placed onto the eye, is critical to its clinical performance. Should the lens be too stiff, however, serious clinical issues, such as superior epithelial arcuate lesions (SEAL), contact lens papillary conjunctivitis (CLPC) and mucin balls are known to develop [1,2].

Source: Contact Lens and Anterior Eye - April 13, 2018 Category: Opthalmology Authors: Éanna Mac Donnchadha, Cristina Leal, Harry Esmonde Source Type: research