SHORT CORRIDOR PROGRESSIVE ADDITION LENSES WITH REDUCED UNWANTED ASTIGMATISM

摘要

2 1 SHORT CORRJDOR PROGRESSIVE ADDITION LENSES WITH REDUCED TNWANTED ASTIGMATISM 5 ABSTRACT OF THE INVENTION THE INVENTION PROVIDES LENSES PRODUCED BV THE ADDING OF TWO OR MORE SURFT1CCS, IN WHICH LENSES BOTH THE LENGTH OF THE CORRIDOR IS SHORTENED AND THE MAXIMUM UNWANTED ASTIGMATISM IS REDUCED. 10