Ophthalmic lens determination process, involves optimizing current lens, in focal conditions, by using astigmatism prescribed to person having distant vision and astigmatism prescribed to person having near vision, as target

摘要

The process involves choosing an initial lens and defining a current lens equal to the initial lens. The current lens is optimized, in focal conditions, by using as target, the astigmatism prescribed to person having distant vision and the astigmatism prescribed to person having near vision. The prescription of astigmatism in near vision is measured with binocular vision. An independent claim is also included for a lens.