As we perform daily activities such as reading, watching television or working at the computer, our eyes are constantly focusing on objects at varying distances – up close, far away and in-between. The ability to quickly change focus throughout our range of vision is called accommodation. Accommodation: The ability of the eye’s natural lens to change shape to focus on objects at various distances. Unfortunately, we begin to lose this ability as we grow older, gradually becoming more and more dependent on bifocals or reading glasses. Presbyopia is a gradual loss of flexibility in your eye’s lens and surrounding muscle fibers that makes it harder for the eye to focus up close. It’s why many people develop the need for reading glasses.
Presbyopic Multifocal Lenses (Tecnis Multifocal, AcrySof Restor): A better option for quality vision at distance, near and anywhere in between.
Until recently, life without reading glasses or bifocals was not an option for cataract patients because traditional monofocal intraocular lenses could only improve distance vision. The multifocal lens, on the other hand, allows you to see near, far, and in between. Most patients find they can read a book, work on the computer, and drive a car-day or night-with an increased freedom from glasses. You’ll notice that, on the multifocal intraocular lens, the center of the lens surface consists of a series of tiny rings, creating a smooth transition of light between distant, intermediate and near visual targets.
In fact, 4 out of 5 patients in the clinical study who had the AcrySof ReSTOR lens in both eyes reported never having to wear glasses for any task, and in another study 85% of patients never had to wear glasses with the Tecnis +4.0 Multifocal lens. In another study with the Tecnis Multifocal +2.75 lens 98% of patients could function at intermediate and far distances without glasses. Since there are multifocal lenses of different powers, Dr. Aaker will speak with you to choose the lens that works best for your vision.
Incredible range of vision day and night
A multifocal lens will help you have reading, intermediate, and distance vision. Different activities are usually performed with the various depths of vision. Near vision is used to read books, and medication bottles; intermediate vision is used for computer screens, cell phones and car dashboards; while distance vision is usually 7 feet or further from your eyes like street signs and movie screens. The multifocal lenses allow for vision in this full range while a standard lens is usually more limited to single distance range.