白內障是用於描述眼睛天然晶狀體混濁（或混濁）的術語。由於它阻擋了進入您眼睛的光路，因此一些常見的症狀包括：視力模糊，眩光，光暈和閱讀困難。這是一個伴隨時間的過程，而外科手術是目前最有效的治療方法。
白內障手術
Cataract removal and Lens Replacement Surgery by Cataract Surgeon in Sydney
What are Cataracts?
什麼原因導致白內障？
白內障會隨年齡增長而形成，在老年人中很常見。其他一些原因包括藥物治療（類固醇），視網膜手術，先前的眼外傷和其他遺傳/先天性原因。
白內障如何治療？
Cataract surgery is a safe and highly developed treatment for removing the cloudy cataract and replacing it with an artificial lens. The operation is usually done in a day surgery setting without the need to stay in hospital. Your anaesthetist will numb the area around the eye with either topical, sub-tenon or peribulbar local anaesthesia. The surgery is done through a very small incision through the side of the cornea. The incision is so small it usually self-seals and doesn’t require sutures.
You can imagine the cataractous lens like an M&M chocolate in concept: when surgery is performed, the surgeon peels a rounded hole on the capsular bag (outer sugar coating), then the cortex and nucleus (chocolate and central peanut) is removed through this hole by the instruments. The capsular bag is meticulously kept intact and becomes the space where a new artificial lens is inserted.
The vast majority of patients who have cataract surgery experience no complications during or following the surgery. A full recovery from surgery can range from a short few days to a few months. Most patients will see clearly the next day after surgery.
手術有什麼幫助？
白內障引起的視力障礙可以通過手術來改善。 手術的好處包括：
- 改善您的視野。
- Improves the 3D perception when both eye achieves good vision.
- Improve the symptoms caused by cataracts such as glare and halo.
- 在某些患者中，需要白內障手術來控制眼壓。
How to prepare for your cataract surgery?
諮詢服務
在您進行全面諮詢期間，我們的醫生將詳細說明病情和涉及的手術。您還將精確測量眼睛的大小。這使我們能夠確定最佳的鏡片來代替自然鏡片。
如果您配戴隱形眼鏡，請確保在對已手術的眼睛進行眼部測量之前，停止使用2週（軟鏡）至4週（硬鏡）。
如果您以前曾進行過激光眼科手術（PRK / LASIK / SMILE），請告知我們的醫生，因為這會影響選擇人工晶體所需的測量方法和計算。
為手術做準備？
在手術當天，您首先要去CBD眼科診所進行檢查，然後滴眼藥水。眼藥水會擴張計劃進行手術的眼睛瞳孔。當散滴劑起作用後，我們將引導您前往悉尼眼醫院的手術室。幾步之遙。
手術期間會怎樣？
白內障手術是在局部麻醉下進行的。在手術過程中，您需要放鬆並平躺。絕大部分手術將花費大約10分鐘，但是更複雜的情況可能需要更長的時間，具體取決於白內障的情況。
手術後，將有一個眼罩覆蓋手術的眼睛。請確保您有可以帶您回家照顧您的朋友或家人
What to expect after cataract surgery?
在進行以下手術時，請注意以下幾點：
眼罩
一夜之間您將獲得眼罩，並需要約一周的處方藥眼藥水。
縫線
These are rarely required, Your dcotor will inform you when it is time for removal.
手術後回家
最好有個人（朋友或家人）帶您回家或安排出租車。
在家
手術後或開藥膏後視力可能會有點臟。
請注意至少兩個星期不要在手術傷口上或其附近摩擦。
術後藥膏
請使用Chlorsig眼藥水白天使用3次，晚上使用藥膏。該藥膏也可以應用於皮膚傷口。
手術後1-2週使用
常問問題
我可以正常洗滌和沐浴嗎？
洗澡和淋浴都可以，但是，請嘗試保持手術傷口乾燥，直到移除縫線為止。在癒合階段，最好保持傷口乾燥。
運動和游泳？
手術後可以進行輕柔的鍛煉，但最好避免劇烈運動，運動或劇烈舉重至少2週，直到傷口癒合。
應避免游泳，直到傷口癒合並清除針跡。
手術後我可以開車嗎？
You should be able to continue to drive few days after cataract surgery if vision has improved and the eye isn’t irritated. However residual swelling of the eye may make the vision blurry, thus please do take great care, or stop driving if the vision is not clear.
Can I still use makeup after cataract surgery?
Avoid using make in the immediate few days following cataract surgery. At least allow 3-5 days for the wound to seal before using make up following surgery.
可以照常看電視或使用計算機嗎？
是的，這些可以照常繼續。
進一步的問題？
If you are searching for an experienced cataract surgeon near me and are based in the Sydney area, please contact us: 悉尼中央商務區眼科手術 02 9233 6688
Interesting Facts about Cataract Surgery
In cataract surgery, a variety of surgical procedures are employed:
Phacoemulsification (or “phaco” in short) is the most widely used method. It includes using a device with an ultrasonic handpiece that has a steel or titanium tip. The lens material is emulsified by the ultrasonic frequency (40,000 Hz) vibration of the tip. To make it easier to break or chop the nucleus into smaller bits, a second fine instrument, may be utilized from a side port. Emulsification is made simpler by fragmentation into smaller pieces and by aspirating cortical material (the soft part of the lens around the nucleus). A dual irrigation-aspiration (I-A) probe or a bimanual I-A device is used to aspirate out the residual peripheral cortical material after the lens nucleus and cortical material have been phacoemulsified.
Small-incision cataract surgery (MSICS): The entire lens is taken out of the eye with this method, a modification of ECCE (see below). The sclera is the white part of the eye This surgery involves creating a self-sealing tunnel through this part of the eye to access the cataract.
Extracapsular cataract extraction (ECCE) Involves making a larger excision through the cornea (measuring 10 to 12 mm), which allows access to the front part of the eye and allows complete removal of the lens leaving behind the lens capsule only. While this is not commonly done in countries where phaco is available, it remains a very useful procedure for patients who have extremely dense cataracts that are not suitable for phacoemulsification.
Intracapsular cataract extraction (ICCE) is a procedure where the lens and lens capsule are both removed simultaneously. This procedure is not usually performed these days given the higher complications associated with it.
Laser-assisted cataract surgery using femtosecond laser is a relatively new technology. It utilizes a laser to replace certain steps of the cataract surgery, however, there is not enough evidence to support that this offers visual or refractive advantages over traditional phacoemulsification.
There are various types of intraocular lenses that are available to be inserted into the eye following cataract surgery. The selection of the appropriate lens often depends on your visual requirements. The type of lenses can include:
Mono-focal intraocular lenses. These are traditional lenses that provide sharp, clear vision at a set focal length and distance. If both eyes are set to distance for focal length there is a very high chance the patient will need glasses after the operation for reading. The advantage of doing this is that the patient will have the sharpest image clarity with good 3D stereo suspicion.
Extended-range intraocular lenses are one of the latest developments in lens technology where the new designs offer similar sharpness to mono-focal lenses however allow the extended focal length to accommodate for both distance vision and some degree of near vision.
Multifocal lenses are lenses that are designed to focus both at a distance and near vision. The lenses have special designs on them which changes the light entering the eye to allow for this. While it is often considered a premium lens and does offer convenience, however, this is done so at a compromise Where the vision is not as sharp as a mono-focal lens at a comparable focal length and may have risks of glare and halos following surgery.
Cataract surgery is perhaps one of the oldest forms of surgery. A procedure known as “couching” was described in ancient Indian literature where a needle was used to push out the opaque matter in the eye. The same process was perhaps also used in ancient Egypt
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