There are five and a half million people are suffering in the United States, cataracts, a clouding of the lens that affects vision. Cataract term comes from the Greek word for waterfall, the mistaken belief that he has caused dimmed waves of humor, vision. are various treatments for cataracts have been around since ancient times, each incremental improvement of its predecessor. Only in modern times, the treatments were available, the characteristics of the lens correspond healthy. There are major advances in improving vision with replacement lenses taken it since the 1940s.

The history of cataract

The first recorded procedure, such as the lacing is known, in 5 Century BC recorded Sanskrit manuscripts. This process moves the lens from the bag, naturally. Although the goal was cataractic the street, it was nothing to replace and improve vision.

A case is known as needles would in the first century AD This method recorded break the cloudy lens, which can relax in a natural way. Modern methods today use modern technology such as lasers, to do similar things.

In the 18th Century has been the target of cataract by different methods, where the target could be trapped by a small incision has been removed. In the early 20th Century, invented a small cup to facilitate the extraction of the lens. In all these methods, the clouded lens is removed, but nothing replaces the objective to improve the other vision problems.

monofocal IOL

In the 1940s, an intraocular lens designed to meet the aphakic serving space canceled after the removal of the crystalline sound. These goals are typical glasses and were only capable of reading glasses for distance. The patients would still wear glasses to correct near vision.

An adjustment of the lens replacement surgery, called mono-vision correction, using different lenses to correct the dominant eye for distance and the non-dominant eye for near. Patients can easily check beforehand whether the vision correction work in mono-test a pair of glasses with the same techniques.

multifocal IOL

At the turn of the century, progress is multifocal lens technology has introduced several improved intraocular lenses to correct vision. There are several options available to correct vision at all distances with the same lens. The multifocal lens is a leading AcrySof ReSTOR IOL. It makes use of diffractive and refractive technology to mimic the way the natural lens bends light in the retina apodized.

The proportion of apodized lens in the lens and proceeds in small steps of increased thickness. This allows good focusing on close objects, which makes this IOL. At the edges of the lens is the part of the refraction, the parallel light, when we can enter in an extended distance to focus on the eye where the pupil is. AcrySof ReSTOR lens although the record is not complete and the natural lens of the eye, they are much closer. can break more than 80 percent of the patients their dependence on glasses.

As the century progresses, technology even further forward and offers eye surgeons greater ability to restore vision with multifocal lenses, the capacity of the human eye approach. It is important to a specialist for optical correction, which keeps the cutting edge of technology related vision correction.


Cataract lenses