A quick explanation and background of a progressive addition lens is necessary in order to understand the importance of choosing the proper lens for your needs.

A progressive lens gives people an array of prescriptions - placed in the proper...

A wrinkle on the retina - which is also known as an epiretinal membrane (ERM) or a macular pucker - is a thin, translucent tissue that develops on the surface of the retina.

The retina is the inner layer that lines the inside of the back of...