How many years can a lens replacement last?

Artificial lens, also known as intraocular lens, is a precision optical component that is surgically implanted into the human eye to replace the cloudy lens that has been removed by the patient. Most people with cataracts have their vision affected because the lens of their eyes becomes very cloudy. The most effective treatment for cataracts is through surgery, which means removing the opaque lens and replacing it with an artificial lens. This type of artificial lens has a relatively long service life.

1. What is an artificial lens?

The main components of the human lens are protein and water. It will become fogged or cloudy due to aging. The fogged lens will hinder the projection of light and images onto the retina. Damage to the eye, certain medical conditions, and even certain medications can cause lens fogging. Intraocular lens implantation is the most effective means of treating cataracts. Thousands of cataract patients have gained good vision through this safe and effective surgical method.

II. Lifespan of IOL

The service life depends on: 1. The type of lens; 2. The success of the operation; 3. Individual differences, whether there is rejection reaction, etc. If all the above factors are taken into consideration, it can generally be used for more than 10 years without any problems.

1. The difference between artificial lens and physiological lens

   Normal people can see distant objects clearly because light passes through the refractive system, which includes the lens, to form a clear image on the retina. When looking at close objects, this is accomplished by the contraction of the ciliary muscle, which pulls the lens ligament to change the convexity of the lens. This allows a clear image to be formed on the retina when looking at both near and far objects. Artificial lens is a lens with fixed refractive power synthesized from artificial materials. It can produce a clear image when looking far away, but requires the help of +300 degree reading glasses to see clearly when looking close. In recent years, with the continuous development of science and technology, the lens has been developed into a bifocal or multifocal artificial lens that is closer to the physiological lens, but the price is relatively expensive.

   4. How to choose an artificial lens for cataract surgery

   1. Ordinary hard intraocular lens

   The performance is stable and the price is low, but the incision is relatively large, the postoperative reaction is severe, the recovery time is long, and the corneal astigmatism is large. Not suitable for special patients.

   2. Foldable intraocular lens

   The surgery causes little damage, mild postoperative reaction, less astigmatism, quick recovery, good stability in the intraocular position, low incidence of after-cataracts, and is UV-resistant. Suitable for most patients.

   3. Multifocal intraocular lens

   It can meet the patient's needs for far, medium and near vision at the same time, and correct presbyopia after replacing the cataract lens. After implantation, most patients do not need to wear reading glasses, which are sufficient to meet their daily needs. Suitable for patients who do not want to wear reading glasses after surgery.

   4. Blue light filtering intraocular lens

   It can filter out ultraviolet rays and blue light that are harmful to the eyes and protect the function of the retina.

   5. Astigmatism correction intraocular lens

   Filter out blue light, protect the fundus, correct corneal astigmatism, and improve postoperative visual quality. Suitable for patients with large corneal astigmatism.

   6. Aspherical intraocular lens

   It filters out blue light, protects the fundus, has a small incision, corrects spherical aberration, and can improve night vision, meet night vision needs, and improve visual quality. Suitable for all patients, especially those with high myopia.