Cataract surgery is a common surgical procedure that is performed to remove a cloudy lens (cataract) from the eye and replace it with an artificial lens implant. The surgery is typically performed on an outpatient basis and takes about 15 to 30 minutes to complete. During the surgery, the patient is given local anesthesia to numb the eye. A small incision is then made in the cornea, the clear front part of the eye, and a tiny instrument is used to break up the cloudy lens into small pieces. These pieces are then removed from the eye using suction.
白內障手術是一種常見的眼科手術，醫生會從眼睛中取出混濁的晶狀體（白內障），並植入人工晶體代替原本的晶狀體。手術通常在門診進行，大約需要 15 到 30 分鐘就能完成，以局部麻醉方式進行。醫生會在角膜上做一個小切口，即眼睛前部的透明部分，然後使用微型儀器將混濁的晶狀體分解成小塊，利用吸力將這些碎片從眼睛中移除。
Once the cataract has been removed, an artificial lens implant is inserted into the eye to replace the natural lens. The artificial lens is typically inserted through the same small incision that was used to remove the cataract. The incision is then closed with tiny stitches or a self-sealing technique.
Monofocal Intraocular Lens (IOL)單焦人工晶體
Monofocal IOLs have a single focus point, which means that they can correct vision for either distance or near vision, but not both.
With a monofocal IOL, the eye is typically set to focus either at a distance or up close, depending on the patient's needs and preferences. This means that patients with a monofocal IOL may still require reading glasses or other corrective lenses to see clearly at different distances.
Monofocal IOLs are the most commonly used type of IOL, and are generally considered a safe and effective option for cataract surgery. They are also typically less expensive than other types of IOLs, such as multifocal or accommodating IOLs. However, they do have some limitations in terms of vision correction, and may not be suitable for patients who have significant astigmatism or who desire greater freedom from glasses after surgery.
Multifocal Intraocular Lens (IOL) 多焦人工晶體
Multifocal IOLs are designed to provide clear vision at multiple distances, including near, intermediate, and distance vision, without the need for glasses or contact lenses.
Multifocal IOLs achieve this by using a series of concentric rings with different focusing powers, which allow the eye to simultaneously perceive multiple distances. This can provide greater freedom from glasses or contact lenses, particularly for patients who have previously needed glasses for both distance and near vision.
However, multifocal IOLs are not suitable for everyone. They can cause visual side effects, such as halos, glare, and reduced contrast sensitivity, which can be particularly noticeable in low light conditions. Patients with significant astigmatism or other eye conditions may also not be good candidates for multifocal IOLs.
Extended Depth of Focus Intraocular Lens (EDOF IOL) 擴展景深人工晶體
EDOF IOLs are designed to provide a range of vision correction, from distance to intermediate distances (such as computer work), and sometimes even near vision, without the need for glasses or contact lenses.
EDOF IOLs achieve this by using a specialized optical design that creates a gradual transition between different areas of focus. This allows the eye to perceive a greater range of distances clearly, while minimizing the visual side effects that can occur with other types of multifocal or accommodating IOLs, such as halos or glare.
EDOF IOLs are a relatively new option for cataract surgery patients, and are becoming increasingly popular due to their ability to provide a range of vision correction while minimizing visual side effects. However, like any type of IOL, EDOF IOLs do have some limitations, and may not be suitable for all patients.
對白內障手術患者來說，擴展景深人工晶體是一個相對較新的選擇，並且變得越來越受歡迎。然而，與任何類型的 IOL 一樣，擴展景深人工晶體也有一些局限性，可能並不適合所有患者。
Pars Plana Vitrectomy (PPV) 玻璃體切除術
PPV is a surgical procedure used to treat a variety of eye conditions that affect the vitreous humor, the clear gel that fills the space between the lens and the retina in the eye. During a PPV procedure, a small incision is made in the sclera, the white part of the eye, and a specialized instrument is used to remove the vitreous humor from the eye. The vitreous humor is then replaced with a saline solution, gas, or oil, depending on the specific needs of the patient.
PPV is commonly used to treat conditions such as retinal detachment, macular holes, epiretinal membrane, and vitreous hemorrhage. The procedure is typically performed under local or general anesthesia, and may require an overnight hospital stay.
Trabeculectomy is a surgical procedure used to treat glaucoma, a condition in which increased pressure inside the eye can cause damage to the optic nerve and lead to vision loss. During a trabeculectomy, a small flap is created in the sclera, and a small portion of the trabecular meshwork is removed to create a new opening for the aqueous humor to drain out of the eye. Mitomycin C, which is a type of antifibrotic agent that inhibits the growth of cells, is then applied to the area around the new opening to help prevent scarring and improve the long-term success of the surgery.
小梁切除術是一種用於治療青光眼的外科手術，患者會因眼內壓力增加會導致視神經受損並導致視力喪失。在手術期間，醫生會在鞏膜中創建一個小瓣，並移除一小部分小梁網以創建一個新的開口，以便房水從眼睛中排出。絲裂黴素 C 是一種抑制細胞生長的抗纖維化劑，將其應用於新開口周圍的區域，以幫助防止疤痕形成並提高手術的成功率。
After the trabeculectomy, a small bleb or blister may form on the surface of the eye, which provides a reservoir for the aqueous humor to drain and helps to regulate intraocular pressure. The bleb may be visible on the surface of the eye, and may require monitoring and management to prevent infections or other complications.
Minimally Invasive Glaucoma Surgery (MIGS) 微創青光眼手術
MIGS involves implanting a small device into the eye that bypasses the trabecular meshwork, which is the part of the eye that drains aqueous humor. By improving the outflow of aqueous humor, this procedure can help to reduce intraocular pressure and slow the progression of glaucoma. It is designed to be less invasive than traditional glaucoma surgeries, with the goal of reducing the risk of complications and improving recovery times.