In practice, a change from 30 to 32 Abbe will not have a practically noticeable benefit, but a change from 30 to 47 could be beneficial for users with strong prescriptions that move their eyes and look "off-axis" of optical center of the lens.
U praksi, promjena od 30 do 32 Abbe neće imati praktički primjetnu korist, ali promjena od 30-47 bi mogla biti korisna za korisnike s jakom dioptrijom koji pomiču njihove oči i pogled izvan osi optičkog centra leće.