At Alta Loma Optometric, we provide our patients with the best in designer eyeglasses in Rancho Cucamonga along with multifocal eyeglass lenses for those in need of progressive, bifocal or trifocal lenses. Eye conditions that require multifocal lenses often begin with presbyopia, or blurred vision. Many people find they suffer from this condition after age 40. Presbyopia can give one the feeling that their arms are not long enough to hold a magazine or paper in a clear reading position.
This condition requires those who suffer from it to wear prescription eyeglasses with multifocal lenses. Multifocal lenses contain more than one lens powers in the lens to help those wearing them to see objects at all distances. Bifocal lenses contain two lens powers while trifocal lenses contain three. Progressive lenses provide a gradual change in power from the top half of the lens to the bottom. Bifocal and trifocal lenses have advantages over progressives in that they provide wider lens areas, which are ideal for computer work and reading. Our designer eyeglasses in Rancho Cucamonga come in many different styles and shapes. Bifocals work where the small portion of the lower part of the lens contains the power that corrects nearsighted vision. The rest of the lens covers the distance vision. The lens segment that works to correct near vision comes in a half moon shape, a round segment shape and a narrow rectangle shape. It can also be found in a style called the Franklin or Executive style, whereupon the bottom half of the lens is the near vision power.
Trifocals have not two but three focal points. One for distance, intermediate and one for near vision. They come in flat-top and executive styles. Bifocals are fitted so that the line rests at the same height of the lower eyelid, and trifocals typically placed somewhat higher so that the top line is placed even with the lower margin of the wearer’s pupil. Our stock of designer eyeglasses in Rancho Cucamonga carries these and many other styles that are unique to the wearer. Our professional eyewear staff can help you find the frames and styles that are best for you.