In China, many patients with high myopia, especially ultra-high myopia (≥800 degrees), cannot be corrected by excimer laser because the corneal thickness is not enough or relatively thin, and ICL brings new hope to patients with high myopia. Simply put, the ultra-thin lens designed to correct myopia is placed in the posterior chamber space of the eyeball refractive system and fixed in the ciliary sulcus to achieve the purpose of correcting ametropia for a long time.
At present, ICL is considered as the latest technology to replace LASIK, PRK and other cutting operations for refractive correction, and it is one of the latest and safest myopia correction technologies.
protect
Since ICL technology entered China for more than 20 years, it has taken off glasses for more than 5 million myopia patients with many advantages such as high safety, convenient operation, no bleeding and no pain. According to the survey, patients who have had ICL surgery and want to try ICL surgery should pay attention to the surgery: safe, safe, and safe again! So, what does the safety of ICL depend on?
First, it must be an accurate preoperative examination.
Preoperative examination is quite strict. Based on advanced and accurate inspection equipment, nearly 20 comprehensive inspection items have been carefully customized, and then diagnosed by experienced myopia experts. Accurate, strict, for those who have surgical contraindications or no surgical indications, do not force surgery to ensure zero risk of entering the operating room.
Second, strict operation process management and perfect operation safety system.
ICL surgery includes preoperative psychological consultation, preoperative examination, surgical operation, postoperative nursing and many other links, each of which requires strict management procedures and strict implementation standards. Therefore, process management and system construction are the signs to measure the comprehensive strength of an eye hospital.
Third, good professional equipment and hardware facilities.
The professional equipment needed for ICL treatment includes preoperative examination equipment, surgical instruments and surgical accessories. Hardware facilities, including operating room environment, must be complete and good. Because the advanced equipment will affect the quality of surgery, the management and operation of ophthalmic equipment and aseptic operating room must be advanced and standardized.
Fourth, the professional quality and experience of doctors.
For any operation, the person who operates the equipment is still a person. Therefore, the most important safety factor is people, and the professional level and surgical experience of doctors are important guarantees for the success of the operation.
FREQUENTLY ASKED QUESTIONS
1 What are the advantages? ICL？
Safety ICL does not cut corneal tissue, but retains the intact structure of eyeball.
Reversible ICL can be permanently implanted in the eye, and can be removed or replaced at any time if other eye surgery is needed in the future.
After HD correction, it can reach or even exceed the expected effect before correction, and restore the visual quality of HD.
Strict and meticulous preoperative examination and preparation, tailored by Swiss Seiko, doctors have passed international qualification certification.
Protective ICL materials can block ultraviolet rays and effectively curb related eye diseases caused by ultraviolet rays.
Comfortable ICL will not be felt by eyes, and its stable position ensures that it works in harmony with your eyes.
2. What is the corrected visual range of 2.ICL?
It is suitable for myopia of 200-2000 degrees, and the correction range is wider than that of excimer laser.
3. How long can I resume my daily work after 3.ICL correction?
The treatment recovers quickly, and you can enjoy high-definition vision within a few hours after correction and get a brand-new lifestyle. After correction, the doctor will tell you specific suggestions.
4. Can I wear cosmetic contact lenses after 4.ICL correction?
ICL will not damage the cornea, so it will not affect the beauty of contact lenses. But Cosmetic Contact Lenses's long-term wearing is harmful to eyes. Please consult your doctor for relevant suggestions.
5. Where does 5.ICL crystal come from? How many years have you used it?
ICL comes from Switzerland and adopts high-tech patented materials with exquisite craftsmanship. Since 1997 was officially put into use in Europe, ICL has gradually been praised by the world and began to enjoy a high reputation in the medical field. Users who choose ICL are all over the world, and an ICL crystal is implanted every 6 minutes.
6. Can I take out or replace ICL at any time if my eyesight changes obviously in my old age?
With the growth of age, our vision may change, and eventually almost all people will suffer from cataracts when they are old and need surgery. The unique advantage of ICL at this time is that you can have more choices in the future. If your vision changes significantly, you can remove or replace the ICL lens and perform other operations at any time.
sequela
Whether laser treatment or ICL treatment for myopia, any medical treatment has certain risks. The possible sequela of ICL surgery is initial cataract. In fact, cataract is one of the common eye diseases of middle-aged and elderly people, and everyone will get cataract when they are older. Cataract is not afraid at all, and surgery can cure it.
As long as the preoperative examination meets the surgical conditions and the operation goes smoothly, the probability of sequelae is very small and almost impossible. Moreover, even if this happens, the operation is reversible and can be remedied. Because the surgical principle of ICL lens implantation is that it will be a soft intraocular lens and placed in a safe area near the human lens without removing or destroying corneal tissue. Therefore, if the patient is not satisfied with the corrected result, the lens can be removed, which is impossible in laser surgery.
Whether it is laser or ICL correction, the improvement of life quality and freedom brought by correction are incomparable.
Adapt to the crowd
1, aged between 18 and 50.
2, myopia, astigmatism, hyperopia. The toric ICL can be used to correct myopia astigmatism.
3. The depth of anterior chamber is appropriate, and the density of corneal endothelial cells is within an acceptable range (this needs to be determined by ophthalmologists through detailed eye examination).
4. The change of eye power within1year shall not exceed 0.5D.
5. Not pregnant.
6. No allergic history to drugs used in refractive surgery and no other contraindications.
7. Dry eye or thin cornea (not suitable for LASIK patients).
Correction principle
ICL correction is a kind of soft lens made of Collamer patented collagen polymer material. The intraocular lens is injected into the safe area of human anterior chamber through a very small incision to achieve the purpose of long-term correction of myopia. After correction, the incision can heal naturally quickly. The whole correction process basically only takes 15 minutes, and the eyes can be used normally the next day.
superiority
1, unique crystal composition
Different from other phakic intraocular lenses, the material of ICL is Collamer, which is a unique body lens material. This special crystal material has higher biocompatibility than acrylic acid and silica gel. ICL can also be folded. Compared with other crystals, the incision needed in the operation is smaller.
2. The safety of the operation has been verified.
The safety and effectiveness of ICL implantation have been widely confirmed. More than 60,000 operations have been completed worldwide, and the US FDA has passed strict clinical verification. Unlike corneal refractive surgery, ICL does not permanently change the structure of the eyeball, but is placed in the posterior chamber of the eye, just like human lens to correct vision.
3. Small incision.
Unlike other phakic intraocular lenses, ICL is foldable, so it can be implanted through a small surgical incision. Small incision is a technique that ophthalmologists are familiar with. ICL only needs 2.8 mm to 3.0 mm incision, while other phakic intraocular lenses approved by FDA need 6.0 mm surgical incision. This kind of small incision has little trauma, does not need suture and will not induce astigmatism.
It is reversible and can be taken out if necessary.
ICL can be permanently placed in the eyes. However, if overcorrection or undercorrection occurs, or complications occur, or the patient's vision changes, ICL can be taken out or replaced by a trained ophthalmologist.
ICL preoperative examination items:
1, mydriasis of small pupil in refractive state, subjective audition, and selection of the best corrected diopter of patients. When checking the best corrected vision, contact lenses are recommended to correct the high ametropia, so that the best corrected vision is more accurate.
2. Observe the cornea, the shape of the anterior chamber and the angle of the chamber under the slit lamp microscope to determine whether there are any contraindications.
3. Corneal topographic map is more accurate than corneal curvature meter, excluding keratoconus.
4. Ultrasonic or optical measurement of corneal thickness and anterior chamber depth must be that the distance from corneal endothelium to lens is ≥ 2.80 mm ..
The corneal diameter from 5.9 o'clock to 3 o'clock can be measured under the surface anesthesia of bipedal slit lamp, and the data can also be obtained by corneal topography instrument with corneal diameter inspection function.
6. Corneal endothelial cell count ≥2200/mm? The operation is safe. Related links: What are the contraindications for treating myopia and doing ICL intraocular lens implantation?
7. Pupil diameter Evaluate the relationship between the pupil diameter and the diameter of intraocular lens optical zone, and predict the possibility of postoperative glare.
8. Retinal examination In high myopia, complications such as peripheral degeneration, sensory holes, and posterior pole Fuch spots often occur in the retina. , should be treated before operation, and inform the patient of possible visual structure.
9. For other conditions, contrast sensitivity vision, wavefront aberration, anterior chamber protein content, retinal thickness, ultrasound biomicroscope and lens transparency can be checked for further study.
10. The patient's mental state is extremely high. Myopia patients' expectation of vision recovery and fear of senile diseases affect the evaluation of postoperative satisfaction, which leads to their poor tolerance for possible postoperative complications and must be fully evaluated.
contact lens/contact lenses
(implantable Collamer lens, ICL) is also called "phakic intraocular lens". Phakic means to keep the human body's own lens, and IOL (intraocular Collamer lens) refers to contact lenses. ICL is implanted between posterior chamber, iris and lens. ICL is considered as a product that can replace LASIK, PRK and other cutting operations for refractive correction.
Collamer ICL has been used in many countries, but it has not been formally tested in the United States. There are two main types of ICL: toric ICL can be used to correct myopia and hyperopia ICL can be used to correct hyperopia. Unlike laser surgery, ICL is a mobile treatment method, so it will not permanently change the shape and structure of the eye.
indicate
1. The age is above 18 and below 50.
2. Myopia -—2.5D ~ —20D, astigmatism ≤ 5d; Hyperopia +2D ~+10D. No history of intraocular surgery, intraocular pigment film, retina and glaucoma. Corrected vision is good.
3. Routine examination showed that there was no corneal formation, no abnormal structure in the chamber angle and normal intraocular pressure.
4. The depth of anterior chamber is ≥ 2.8 mm ..
5. corneal endothelial cell count >; 2500/ square meter.
6. Participate in various laser operations to correct high ametropia.
7. People without mental illness have a reasonable desire to take off the lens and a suitable postoperative expectation mentality.
taboo
1, the patient's eye degree changed more than 0.5D in 1 year.
2. The age is less than 2 1 year or more than 50 years old.
3. Depth of anterior chamber
4. Low corneal endothelial cell count, corneal degeneration or corneal endothelial cell count.
5. The patient has insulin-dependent diabetes.
6. Either eye is glaucoma or cataract or is diagnosed with high intraocular pressure.
7. The patient suffers from systemic collagen allergy or autoimmune diseases.
8. Active inflammation and tumor of eye and ocular adnexa.
9. Without the permission of a psychiatrist or psychiatrist.
10, female pregnancy and lactation. safe
ICL does not remove or destroy corneal tissue. Because of its incomparable superior effect, ICL has gradually become the fastest-growing new trend in the world.
reversible
Unlike contact lenses, ICL crystals can be permanently implanted in the eyes. If myopia patients need other eye surgery, ICL can not only be removed, but also will not cause any structural changes in the eyes or cornea.
high-definition
Let the eyes return to excellent high-definition visual quality, and the corrected vision can reach or even exceed the expected corrected vision before correction.
strict
Detailed preoperative testing and preoperative preparation, Swiss Seiko tailor-made crystals, and an international team of doctors certified by VISIAN ICL.
protect
ICL materials contain ultraviolet blocking genes, which can prevent harmful ultraviolet rays from entering the eyes, thus effectively curbing related eye diseases caused by ultraviolet rays.
comfortable
The stable position of ICL in the eyes ensures that it works in harmony with your eyes. Once the crystal is implanted in the eye, it can't be seen or touched. The process of implanting icl lens in high myopia is not complicated, and safety is very important. It must be operated by a doctor skilled in microsurgery and experienced in surgery. There are three main steps in the operation:
1. First, make a small incision between the black and white of your eyes.
2. Then, inject a gel into your eyes to protect the tissues in your eyes, and then push ICL into your eyes.
3. Then, carefully adjust the ICL behind the iris and rinse the gel out of the eye. 1. IOP: Many people are very confused about checking IOP, and don't understand the use of checking this. In fact, this is an item that needs to be checked for eye surgery and even wearing orthokeratology glasses. High intraocular pressure can easily cause excessive aqueous humor to stay in the eye, causing pressure on the eye wall, thus leading to ophthalmic diseases such as glaucoma, so it is necessary to check intraocular pressure.
2. Examination of cornea and corneal curvature: It can effectively examine the transparency of cornea and astigmatism of eyes, which is of great significance to the choice of surgical methods and postoperative judgment;
3. Examination of anterior chamber and anterior chamber angle: The positive flash of aqueous humor indicates iridocyclitis, and appropriate treatment should be given before operation. For eyes with narrow anterior chamber angle, peripheral iridectomy can be combined during operation;
4. Vision: It is absolutely important to check myopia and hyperopia before ICL. Only when the vision conditions are determined can the appropriate ICL crystal be customized to obtain the best corrected vision for patients.
5. Visual field: For glaucoma or other eye diseases that clearly exist at the same time, visual field examination should be carried out.
6. Examination of the posterior segment of the eye: Check whether the vitreous body, retina, papilla and macula are normal and whether the choroid is diseased as far as possible under mydriasis, and know whether there is vitreous lesion, retinal detachment or intraocular tumor with the help of A-mode and B-mode ultrasound. Electroretinogram is of great value in evaluating retinal function.
7. Measurement of intraocular lens power: According to the axial length measured by A and the corneal refractive power measured by corneal refractometer or corneal topography, it is very important to calculate the intraocular lens power with SRK Ⅱ Ⅱ Ⅱ formula;
8. Lens examination: observe the shape, position and degree of lens opacity, the color of lens nucleus, and pay attention to the characteristics of lens capsule, lens thickness and whether the suspensory ligament is detached and ectopic;
9. Examination of iris and pupil: If there are new blood vessels in iris, iris scissors with electric coagulation function can be used when removing iris during operation. It is helpful to make a surgical plan to check the pupil's ability to respond to light and dilate, and whether there is adhesion. 1, ICL intraocular lens implantation hardly interferes with daily life after a few days. Within two weeks after operation, you should pay attention to wearing an eye mask when sleeping, and don't let soapy water enter your eyes and make up your eyes when washing your face and hair. It is best to avoid strenuous exercise.
2. In addition, it is forbidden to carry overweight articles or engage in strenuous exercise within 1-2 weeks. Don't rub your eyes or put pressure on your eyes during the recovery period after operation.
3. Vision changes with the recovery of the wound around the cornea, but most of them will heal and keep good. In addition, the visual acuity tends to be stable after 1-2 weeks.
4. Four weeks after operation, do not swim, do not rub your eyes, do not use other eye drops except as instructed by the doctor, and avoid shaving water, hair gel and other styling sprays.
5, postoperative medication should be in accordance with the doctor's advice, and regular review. Usually every other day, one week, one month and three months after operation. If you feel unwell, please go to the hospital as soon as possible. ICL intraocular lens implantation, also known as "intraocular contact lens" implantation, is not limited by corneal thickness, and can be safely put into the eye or taken out at any time, without any adverse reactions in the eyes of myopia patients, with high safety and intact corneal tissue.
Myopia surgery experts said: "ICL intraocular lens implantation is to put a' small glasses' in the eye, which has no damage to cornea and intraocular tissue." More importantly, the reversibility of this ICL operation can be taken out in time if you feel uncomfortable after surgery. "
For ICL intraocular lens implantation, experts from Global Hospital Network also introduced to Bian Xiao that ICL is called "phakic intraocular lens implantation", which is a high-precision intraocular refractive surgery and the latest surgical method widely promoted abroad to treat high myopia. It is the best choice for patients with high myopia.
ICL intraocular lens implantation is a kind of foldable intraocular lens made of imported special materials, which can be implanted into the eye through a 3mm incision on the cornea according to the degree of myopia and ciliary sulcus of the patient, and placed between the pupil and the normal lens.
Moreover, ICL intraocular lens implantation is suitable for all kinds of myopia patients, especially those with high myopia and thin cornea, which avoids glare and keratoconus, ensures the free physiological adjustment function of cornea and obtains good visual effects. The refractive state is also very stable, no surgical traces can be seen by naked eyes after operation, and the visual quality is obviously improved after ICL implantation.
Implantation of folding forceps
The required incision is about 4mm, and it is implanted into the capsular bag through sclera or corneal tunnel. Take out the foldable intraocular lens with implantation forceps, clamp the center of the optical part in the longitudinal direction, insert it into the groove of the folding forceps in parallel in the longitudinal direction, and slowly fold it in half, so that the folded edge will also be upturned. Clamp the folded lens with implantation forceps close to the folding forceps and replace the folding forceps. Feed the lower haptics and lens optic horizontally into the capsular bag through the sclera or corneal tunnel, rotate the implant forceps so that the folded edge is downward, and then gently loosen the implant forceps. The optical part of the lens is slowly flattened in the capsular bag, and the haptics are rotated into the capsular bag with implantation forceps or lens positioning hooks.
Injector implantation
Using a special device, the intraocular lens is placed inside, curled into a column, and pushed into the capsular bag through the scleral tunnel or transparent corneal incision. Clamp the center of foldable intraocular lens longitudinally with lens implantation forceps, put the intraocular lens longitudinally into a special folding clip, straighten the two rain grooves, inject an appropriate amount of viscoelastic agent, and fold the folding clip, taking care not to clamp the haptics. Install the folding clip with lens on the special syringe, carefully rotate the push rod and push the lens to the front edge of the syringe needle tube. Insert the needle tube of the syringe into the transparent corneal incision or scleral tunnel incision, slowly rotate the push rod, so that the lower haptics and the lens optic part are slowly unfolded in the capsular bag, and send the upper haptics implantation forceps or the lens rotating hook into the capsular bag. Generally, the intraocular lens implanted in the lens does not need to be adjusted. If there is obvious deviation, it should be adjusted to the horizontal position with the adjustment hook. Then replace the viscoelastic agent in the anterior chamber. In general, the incision does not need to be stitched. If the incision is not completely closed, it needs to be stitched. Conjunctival incision was flattened and restored, and both ends were closed by electrocoagulation. ICL = international classification
It will be used by the United States Patent Office to retrieve American patents through advanced search, and the corresponding number is CCL (Current American Classification).