1.56 plano round top bifocal optical lenses

However, many people notice their eyes no longer adjust to distances as they once did.
Therefore, around age 40, the eye’s lens gradually loses its natural flexibility.
Consequently, focusing on close objects becomes increasingly difficult over time.
Accordingly, medical professionals call this condition presbyopia.
Moreover, bifocal lenses can effectively manage this age-related problem.
Furthermore, multifocal eyeglass lenses contain two or more optical powers.
Additionally, these lenses help users see clearly at all distances after losing natural focusing ability.
Meanwhile, the lower portion of a bifocal lens features a near segment for reading.
Nonetheless, the rest of the lens typically offers correction for distance vision.
Nevertheless, some lens designs provide no distance correction at all.
Indeed, this depends on whether the wearer already has good distance vision.
Ultimately, bifocals remain a practical solution for presbyopia.