The rigid contact lenses will be breathed

The rigid contact lenses will be breathed
Brief content:In recent years, a new kind of contact lenses begin to be praised highly by ophthalmology expert. Such contact lenses made of polymer materials such as silicon, Fluorine,etc. are called the completely rigid oxygen cornea contact lens RigidGasPermeableContactLens (RGP) ,Its greatest characteristic is the structure with completely high oxygen, there are " contact lenses that will be breathed " in the industry It claims.
Let eyes be healthier the expert introduces, the route that eyes obtain the oxygen is different from other organs, a lot of organ of people it obtains oxygen to be to get in blood, and cornea of people carry on oxygen that metabolism need absorb in air directly. Because of the intersection of oxygen and the intersection of rate and low reason of deforming etc. easy completely traditional contact lenses, make a lot of stealthy wearer to appear eyes do astringent, tired, the intersection of foreign matter and sense, look at thing to be fuzzy in the past, the serious one even infects the eye, cause irreversible eyesight losses.
The eyes of Ministry of Public Health look at the optical Deputy Director of research center, Wenzhou the intersection of medical college and eyes depend on optical institute carry out president, of our country eyes that first China and the United States train jointly, look at optical the intersection of doctor and the intersection of sail and Professor Lu, tell reporters: "The contact lenses are worn comfortably and wanting the health to have a lot of key elements to need considering, such as oxygen nature, getting wet, hardness,etc. completely. Element silicon, completely oxygen is very high, up to 100% in theory. But silicon is too high, wet and non- enough, so has also increased Fluorine. In addition, there is the the bigger hardness of lenses, the clearer the formation of image is, but too hard eyes are unable to suit - --The material of RGP is a kind of high polymer, it synthesizes, equilibrates the characteristic of many kinds of elements, fetch a joint point. "
Weigh cornea until how much oxygen lens can get, have one very ocular figure name oxygen coefficient (Dk value) completely of contact lenses . Traditional soft mirror principal ingredients are gel of water, completely oxygen coefficient has more than 20 only. And because RGP contains right amount of silicons, the lowest one has 36, the high one is even more than 100. "In addition, RGP mirror has relatively more activity degree on the cornea, can let the cornea of different positions get the oxygen directly alternatively. The intersection of cornea and oxygen deficiency, can prevent a lot of complication that correlated with wearing the traditional contact lenses. " Sail Lu say.
Letting life be usually simpler, people will think the nursing of the contact lenses is a very troublesome thing: Wear time restriction continuously; Where must take the bottle to attend to the liquid; Medicinal liquid has useful life too; Clean the intersection of contact lenses and slice, have many exquisite, take, rub, rub with the hands Do not according to the official exercise, it is very great to suffer from the probability of conjunctivitis, keratitis.
It is reported, after RGP lens is soaked in maintaining the liquid, by can be worn to attend to the liquid directly when washinging. Abroad, someone even washes with the running water directly. The lens life-span is longer too, so long as pay attention to using correctly, there can generally be life-span in 2- 3 years, in terms of this, it is very economic too.
In addition, " RGP mirror has advantage that a traditional soft mirror can't be compared, " Sail Lu say " that whether it can control myopia, the intersection of astigmatism and intensification of degree, especially can slow down the speed of teenagers' near-sighted development; Slow down function on early taper cornea and persons who are prone to taper cornea. "
Sail Lu explain: "Discover, mainly retina form the fuzzy picture to cause the near-sighted reason. The speciality call from burnt formation of image that look like, will lure (the intersection of eyes and axle) directly in front and at the back of eyeball into Lengthening constantly. On the premise of getting rid of other factors, eyes axle is one millimetre for every increase, you will increase by 300 degrees if you are near-sighted. Just because RGP formation of image high in quality in mirror, can delay the intersection of eyes and axle lengthen, can delay near-sighted development effectively. "
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