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Light Adjustable Lens patient during lock-in with the Light Delivery Device (LDD)

Light Adjustable Lens™ 的工作原理

到了 60 多歲時，我們中的大多數人都會患上白內障，即眼睛的天然晶體混濁，可能會導致視力模糊、暗淡和扭曲。1如果你正準備接受白內障手術，並希望根據自己的生活方式優化視力，有一種創新的選擇可以讓你更好地控制手術效果：Light Adjustable Lens (LAL™)。它是唯一一款可在植入眼內後、於術後仍能調整度數的人工晶體 (IOL)，讓符合條件的患者有機會獲得個人化的視力。

固定式 IOL 與 Light Adjustable Lens 的比較

傳統的 IOL 被稱為固定式人工晶體，這意味著外科醫生必須在手術前選擇晶體度數，而且一旦植入就不能改變。此程序要求你在白內障手術前決定自己想要什麼樣的視力。Light Adjustable Lens 則不同。大部分決定都是在術後眼睛痊癒後做出的，這樣你就可以根據自己的生活方式和喜好來預覽和調整視力。

工作原理

Light Adjustable Lens 由一種特殊的光敏材料製成，在紫外線 (UV) 照射下會輕柔地改變形狀。在你的眼睛術後痊癒後，醫生會根據你所期望的視力效果，使用新型 Light Delivery Device™ (LDD™) 來精確調整你的晶體。每次治療只需幾分鐘，醫生會使用紫外線照射改變晶體的形狀，並根據你所期望的視力效果對你的驗光處方進行微調。

手術後預期情況

手術後三週左右，你將回到醫生的診所，開始光療的定制過程。在這些就診過程中，你將與醫生一起決定哪種視力效果最適合你的生活方式。

為了在調整期間保護你的視力，你將佩戴 RxSight 防紫外線保護眼鏡，以防止晶體在最終鎖定前發生意外變化。你將獲得三種類型的保護眼鏡，即有色眼鏡、透明眼鏡和透明閱讀用眼鏡，讓你佩戴舒適、方便。在這裡瞭解有關 RxSight 防紫外線保護眼鏡的更多資訊，以及這類眼鏡如何為你提供幫助。

治療時間表

眼睛痊癒後，你最多可以接受三次光照調整治療。隨後進行兩次「鎖定」治療，以鞏固你的個人化視力效果。所有治療均在醫生診所進行。

持久的解決方案

Light Adjustable Lens 與所有 IOL 一樣，可以永久替代你眼睛的天然晶體。它不會隨著時間的推移而磨損或混濁，通常也不需要更換。在最終鎖定後，你使用 Light Adjustable Lens 的視力將是你餘生的視力。

你的視力應該反映你的生活方式。使用 Light Adjustable Lens 後，你不會被手術後的固定效果所束縛。相反，你可以體驗自己的視力，並與醫生一起定制適合你獨特的生活方式和喜好的視力。

有興趣瞭解 Light Adjustable Lens 是否適合你？尋找你附近的服務提供者，預約諮詢。

  1. National Eye Institute. At a glance: cataracts. Accessed April 4, 2025. http://nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases/cataracts
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LAL patients saw nearly as well without glasses (UCDVA) as control patients did with glasses (BCDVA).

The Light Adjustable Lens provides optimized vision for patient satisfaction.2

Light Adjustable Lens patients saw nearly as well without glasses (UCDVA) as control patients did with glasses (BCDVA).

Since the Light Adjustable Lens is a monofocal lens, there is low risk of dysphotopsias caused by splitting light, leading to potentially enhanced vision and patient satisfaction.

LAL patients are approximately two times more likely to achieve 20/20 vision or better without glasses at 6 months.

The Light Adjustable Lens offers LASIK-like accuracy in cataract surgery.2,3

92% of eyes (N = 391) achieved results within 0.50 D of target manifest refraction spherical equivalent (MRSE).

Patients are approximately two times more likely to achieve 20/20 vision or better without glasses at 6 months.

The study was a prospective, controlled, multicenter, 12-month study of 600 patients (ITT population) randomized to receive implantation with the RxSight LAL (N = 403) or a commercially available monofocal IOL (N = 197). Effectiveness analyses included 391 LAL patients and 193 control patients. Primary safety variables included best spectacle-corrected visual acuity (BSCVA) at 6 months and incidence of sight-threatening complications and adverse events. Primary effectiveness variables included percent reduction in manifest cylinder at 6 months, percent mean absolute reduction in MRSE at 6 months, and rotation of meridian of LAL at 6 months. Percent of eyes with an uncorrected visual acuity (UCVA) of 20/20 or better at six months post-operatively compared between the LAL treatment group and the monofocal control group was a secondary endpoint.

The Light Adjustable Lens corrects as low as 0.50 D of astigmatism, which is the lowest level approved to be treated.

The ability to treat 0.50 D of postoperative cylinder makes the Light Adjustable Lens the only IOL in the United States approved to correct this level of vision-altering astigmatism. Astigmatism of as little as 0.50 D can reduce visual acuity by one line, and the impact on dynamic, functional visual acuity and low-contrast acuity is even greater.1