The IOL, also known as artificial lens, is a precision optical component that is surgically implanted into the eye to replace the cloudy crystal of its own, which is removed. The differences between domestic and imported IOLs are as follows:
1. Different diameters: Ordinary IOLs: the diameter of the straight source is generally 5.5-6 millimeters, and to implant it into the eye, it needs a 6-millimeter surgical incision, which is relatively large and has a heavier reaction after the operation.
2. Different materials: Folded IOL: For the shortcomings of ordinary IOL, it is made of soft material and can be folded and implanted in surgery, with a surgical incision of 3 millimeters, which makes the surgical damage, postoperative reaction and astigmatism small, and quick recovery.
3, the effect is different: adjustable folding IOL (multifocal folding IOL): the general IOL is but the focus, this IOL through a special design, can be in the lens capsule bag and ciliary muscle under the role of the automatic change of the focus, see the distance and look at the near have good results.
4. Aspheric IOL: Currently, the smallest incision IOL is implanted by the new technology of ultra-lactic implantation, meanwhile, the aspheric design makes the vision clearer and the visual quality higher. The cost of cataract surgery varies greatly depending on the crystalline lens, and it will make the postoperative effect different as well. Some new materials and designs of lenses can improve the visual quality of patients after surgery. New types of IOLs such as folded lenses, UV protected lenses, heparin-treated lenses, and multifocal lenses have been introduced to give cataract patients more choices.
Expanded Information:
p>The IOL form usually consists of a circular optic and peripheral support tabs, the diameter of the optic is usually around 5.5-6 mm, and the support tabs are used to hold the IOL in place, and can be two C- or J-shaped wire-mounted support tabs.
The main components of the human lens are proteins and water, which can become foggy or cloudy due to aging, and a foggy lens can prevent light and images from being projected onto the retina.
Damage to the eye, certain diseases, and even certain medications can cause fogging of the crystals; statistically, more than 90 percent of cataracts also result from the inevitable aging process, in which the crystals of the eye become cloudy, and then vision is affected, through a mechanism that is still unclear, and for which drug treatments have yet to make a breakthrough.
The only truly effective treatment for cataracts is surgery, which involves removing the lens that has become opaque and replacing it with a man-made crystal called an IOL. IOL implantation is the most effective means of treating cataracts, and thousands of cataract patients have gained good vision through this safe and effective surgical method.
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