subject: Bifocal Contact Lenses for Correction of Presbyopia [print this page] Bifocal Contact Lenses for Correction of Presbyopia
A bifocal contact lens is a designed to provide sharper vision for people who have vision problems such as presbyopia, which is an age-related condition wherein the eye shows diminished ability to focus objects that are near.
Bifocal contact lenses are now available in soft and or rigid gas permeable materials depending on what works for you. The lens features two kinds of prescriptions on one lens. One lens is used to correct vision at a distance while the other is used to correct vision nearby. Since aging is not a reversible process, presbyopia becomes common among elderly. The design of bifocal contact lenses comes in two forms: alternating and concentric ring.
The alternating bifocal contact lens works just as the same as the bifocal eyeglasses. It has two power segments that allow the pupils to alternate between the two powers as the wearer's gaze shifts up or down, near and far. Bifocal lenses are mostly available in the form of gas permeable contact lenses which rides the eye more just above the wearer's lower eyelid thus the lens gets to stay in its rightful place for a better vision correction.
The concentric ring bifocal contact lens features a prescription at the center with one or more power rings that surrounds it. When there are multiple rings, it alternates between distance and near prescription. The concentric ring bifocal contact lens is available in soft or rigid materials but the location of its powers can vary.
Because of the ageing population, more presbyopia cases are now using bifocal contact lenses to correct vision changes. If you are in your prime years, it is a must that you visit your optometrist Austin to assist you in the detection of presbyopia so that proper fittings and corrections can be made to improve your quality of life with the help of a bifocal contact lens.
