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The Secret of Cataract Surgery: How Endoscopy Can Give You Sight Again?
As we age, many people face the problem of progressive blurring of vision, and cataracts are one of the main causes of vision loss. In recent years, cataract surgery has become a common treatment method, and the most important technology is the implantation of intraocular lens (IOL). This tiny lens replaces the natural crystalline lens during surgery, rebuilding the eye's optical system and helping patients regain sight. In this article, we’ll explore how intraocular lenses work and the changes they make.
"Endoscopy not only removes cataracts, but also corrects other vision problems, such as nearsightedness and farsightedness."
Endoscopes are mainly divided into two categories: phakic IOLs and pseudophakic IOLs. Native endoscopes are lenses that are implanted without removing the natural lens, while prosthetic endoscopes are implanted after the lens is removed. Both lenses are designed to provide the same optical focusing capabilities as natural crystal lenses, thereby improving vision. Typically, today's implanted endoscopes are made of flexible materials that can be easily inserted through small incisions during surgery.
"As many as 28 million cataract surgeries are performed worldwide every year, demonstrating the importance of this technology."
The surgical procedure is usually performed under local anesthesia, and the patient remains awake during the procedure. The surgery usually takes no more than 30 minutes, and the recovery period is about 2 to 3 weeks. During this period, the doctor will advise the patient to avoid overly strenuous activities and to return for regular follow-up visits to check the status of the implant. Although endoscopic eye surgery has a high success rate, there are still risks such as infection, lens rotation, and inflammation. It's important to note that even though many patients no longer rely on glasses after surgery, they still need to wear them for certain activities, such as reading.
Types and applications of intraocular lenses
There are various types of endoscopes, including single focus endoscopes, multifocal endoscopes and adaptive endoscopes. Monofocal intraocular lenses are the most common type and their primary function is to focus on one viewing distance, such as distance vision. However, this means that patients may still need glasses when they need to see things at close range, such as reading.
"Multifocal intraocular lenses can provide simultaneous focus for both distance and near vision, although in some cases this can be associated with visual problems such as glare and loss of contrast."
Adaptive endoscopes are a newer design that aim to help the eyes regain a certain ability to change focal length (accommodation), although its effect is generally limited. Once implanted, these intraocular lenses are influenced by the surrounding muscles, allowing them to adjust their focus. In addition, patients must be aware of some risks associated with surgery, such as the high risk of cataract recurrence.
Surgical safety and risks
Cataract surgery is still relatively safe, however, all eye surgeries have a certain risk of complications. According to research, complications that may occur after surgery include blurred vision, retinal detachment, glaucoma, etc. For those who choose to use cylindrical or other specially designed endoscopes, they should understand the risks and effects of these special endoscopes. For example, cylindrical intraocular lenses have more complex optical designs and may present more visual challenges.
"Before surgery, the patient's eye condition must be fully assessed to formulate the best surgical plan."
In addition to traditional cataract surgery, there are now some other forms of surgery, such as clear lens extraction surgery (CLEAR), which is specifically designed for patients with vision problems who have not developed cataracts. This type of surgery is similar to conventional cataract surgery. The surgical procedure is simple, recovery is quick, and 94% of patients have significantly improved vision after surgery.
Experience using intraocular lenses
Many patients who have undergone endoscopic eye surgery report that their eyes feel a bright and clear world after the operation, and they have regained the joy of life. However, not every patient can fully adapt to the new field of view, and some patients may experience some postoperative discomfort, such as irritation or temporary visual changes. Therefore, it is important for patients who want to undergo this type of surgery to understand the characteristics of eye endoscopes and their own needs.
Of course, the advancement of technology and the exploration of ophthalmic research and development have continued to evolve the technology of ophthalmic endoscopes. In the future, we look forward to more innovative options to help patients regain a clear world. Have you considered how to choose the best eyeglasses for you?
