To help you determine if you are a good candidate for Visian ICL implantation, some useful information about Visian ICL is provided below are answers to some frequently asked questions: Q: How can I tell if I am a good candidate for Visian ICL implantation? A: Patients who are suitable for Visian ICL should be between the ages of 18 and 50, have myopia (with or without astigmatism), and want to achieve better vision correction. Ideally, patients receiving Visian ICL should not have had any eye surgery and should not have a history of some eye disease, such as iritis, hypertension or glaucoma or diabetic retinopathy. Luo Yan, Ophthalmology Department, Peking Union Medical College Hospital Almost anyone seeking clearer vision correction may be a good candidate for Visian ICL, including those with special requirements or those seeking perfect vision correction. You can contact an ophthalmologist who is certified in Visian ICL for a related consultation and examination to obtain more information and evaluate your suitability for the procedure through an examination. Women who are pregnant or breastfeeding should not undergo Visian ICL surgery at this time. Also, people with insufficient anterior chamber depth or low corneal endothelial cell density are not suitable for Visian ICL surgery. Q: Where is the Visian ICL implanted? A: The ophthalmologist will implant the Visian ICL into the eye through a tiny incision of 3mm, behind the iris and in front of the lens. The Visian ICL is designed not to contact any intraocular structures and no special care is required once it is implanted in the eye. Q: How is the Visian ICL being used? A: The Visian ICL has been extensively researched and improved prior to its launch (the first generation was launched in Europe in 1997). Now, more than 800,000 patients worldwide have received Visian ICL implants. In FDA clinical trials, more than 99% of patients were satisfied with the results of the procedure, and Visian ICL has a track record of stable clinical outcomes with consistently excellent results for more than a decade. Currently, V4C (third generation) has been approved for marketing by the SFDA in China. Q: Will the surgery be painful? A: No. The ophthalmologist will apply surface anesthesia and may also administer some weak oral sedation. Most patients feel relatively comfortable throughout the procedure, sometimes with a little eye swelling or microscope light glare. Q: What materials are used to make the Visian ICL? A: Visian ICL is made of Collamer, a highly biocompatible, advanced crystalline material containing a small amount of purified collagen, which does not cause any reactions in the eye and also protects the eye with its UV filtering function. Q: What should I do if my vision changes after the Visian ICL is implanted? A: One of the advantages of the Visian ICL is its flexibility of treatment. If there is a significant change in your vision after the Visian ICL is implanted, your doctor can remove or replace the lens. A repeat procedure can be performed at any time of need. After the Visian ICL is implanted, patients can also wear glasses or corneal contact lenses as needed. The lens does not treat presbyopia (presbyopia, which usually occurs after the age of 45), but you will still be able to read with presbyopic glasses as needed after the Visian ICL is implanted. Q: What kind of surgical procedure is required to implant a Visian ICL? A: The procedure to implant a Visian ICL is very simple and painless. The implantation procedure itself takes about 10 minutes. You may experience slight discomfort during the Visian ICL implantation procedure. The procedure can be performed under surface or local anesthesia, and some weak sedation may be applied. After the procedure, you will need to take some eye drops or oral medication as prescribed by your doctor. The day after surgery, you will need to see your doctor for a follow-up examination. You will also need to have a review at 1 month and 6 months after surgery. Q: Can Visian ICL be removed from my eye? A: Although it is intended to be permanently implanted in the eye, it can be removed by a board-certified ophthalmologist if necessary, and you will still be able to wear glasses as needed after the ICL is removed. Q: Can Visian ICLs be seen by others? A: No. The Visian ICL is located behind the iris (the colored part of the eye), so neither you nor anyone else can see the lens. Only your doctor will be able to tell that you have had your vision corrected with special equipment. Q: Will I be able to feel the lens after the Visian ICL is implanted? A: The Visian ICL is designed so that there is no irritation at all after implantation. The lens is very quiet in the eye and does not react with any intraocular tissues. Q: What are the benefits of the Toric ICL (which has the ability to correct astigmatism at the same time)? A: Toric ICL has excellent predictable results, correcting myopia while simultaneously correcting concomitant astigmatism up to 600 degrees, resulting in excellent visual quality.