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What Are Implantable Contact Lenses?

Views: 398     Author: Site Editor     Publish Time: 2020-10-25      Origin: Site

The current treatment of myopia includes treatment with frame glasses, treatment with contact lenses, and laser surgery. Contact lens is a kind of soft, contact glasses worn on the surface of the cornea. It is a corrective method for myopia. Visian ICL and LASIK eye surgery to correct vision are both myopia correction options. The management and operation of ophthalmic equipment and sterile operating room must be advanced and standardized. The material is generally stainless steel, such as stainless steel medical scissors and stainless steel speculum.


Visian ICL VS LASIK Eye Surgery


LASIK eye surgery (laser-assisted in situ keratomileusis) is an operation that uses laser to change the curvature of the cornea to improve vision. This kind of surgical equipment is sophisticated and expensive, requires high surgical techniques and a sterile surgical environment, and can be carried out in large hospitals with better conditions. Because the operation is only performed on the cornea on the surface of the eyeball, it is safe. Moreover, the operation time is very short, and it is painless and does not affect the work and life of the patient.


Implantable contact lenses (ICL) are currently the most high-end and safe myopia correction program. It is a special lens implanted in the human eye to change the line of light entering the human eye, thereby making the image clear. That is to say, without cutting the cornea, the lens is implanted into the eye through minimally invasive surgery without any damage to the cornea. The price of ICL lens implantation surgery is close to 30,000, which requires very high surgeons. It is recommended to find an experienced surgeon.


In the structure of the human eye, there is a narrow gap between the lens and the iris, and implantable contact lenses are implanted in this small space. After correction, the vision may be restored to more than 1.2, and it also saves the trouble of wearing and removing traditional contact lenses every day.


Visian ICL is not dedicated to correcting age-related vision problems, such as presbyopia, so the ideal candidate for this surgery is an adult under 45.


How Is Visian ICL Done?


The ICL is inserted between the iris and the natural lens of the eye. When implanting the lens, the surgeon wears a disposable speculum with light and uses ophthalmic surgical instruments cannula to inject the gel into the eye to prevent any damage during the operation. The surgeon uses Iris-eye scissors and sterile scissors to make a small incision in the cornea in order to place a small cartridge containing the ICL.


After the lens is fully expanded, the doctor places the corners of the lens behind the iris so that the lens becomes completely invisible. Then, the surgeon uses disposable surgical scissors to make a small incision in the iris to allow the fluid to circulate around the lens. Generally, the procedure for each eye surgery is about 10 to 15 minutes.


Stainless Steel Straight Alligator Forceps

Advantages of ICL


1. A wider range of correction diopters: myopia is 50 degrees to 1800 degrees, and astigmatism is 50 degrees to 600 degrees.


2. Safe and reversible: Corneal tissue is not cut, and the lens can be removed or replaced if necessary.


3. UV protection: it protects the eyes better.


The new generation of Visian ICL (V4c) was launched in Europe in April 2011 and entered China in October 2014. It uses center hole technology, no need to cut the iris, which brings greater convenience for doctors and patients. Its safety, effectiveness, predictability and stability have also been confirmed by a large number of documents.


Precautions for ICL


ICL is intraocular surgery, and the risk is much higher than extraocular surgery. Some medical appliances, including blunt tip medical scissors and ophthalmic forceps, are potentially dangerous for eye infection.


In addition, during the operation, because the implantation position is behind the iris and in front of the lens, the space is very narrow, and the lens is very easy to touch other intraocular tissues, which may cause cataracts and other eye diseases in the future.


Once the gel injected with disposable ophthalmic cannula is not cleaned, it is easy to increase the intraocular pressure and cause glaucoma.


At the same time, people undergoing this kind of surgery are relatively young. As they grow older, the lens becomes larger, which will narrow the gap between the lens and the iris.