Objective Depth-of-Focus Changes During Light Adjustable Lens UV Adjustments
Objective Depth-of-Focus Changes During Light Adjustable Lens UV Adjustments and Lock-In: A Prospective Pilot Study
This observational pilot study will examine how a person's vision changes during the routine adjustment and finalization of a Light Adjustable Lens (LAL) after surgery. The study will focus on objective depth of focus, measured using iTrace wavefront analyzer, which describes how clearly a person can see at different distances. This is a non-invasive eye test that will be used alongside the standard lens adjustment process. This study will help researchers understand why some patients achieve unexpectedly good near or intermediate vision after LAL adjustments despite being targeted for emmetropia.
調査の概要
研究の種類
入学 (推定)
連絡先と場所
研究場所
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Ontario
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Barrie、Ontario、カナダ、L4M 7G1
- 募集
- Lumea
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コンタクト:
- Jacqueline Sun
- 電話番号:705-300-0741
- メール:Jsun@clarityeye.ca
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
サンプリング方法
調査対象母集団
Adults undergoing bilateral cataract surgery with LAL implantation as part of standard clinical care.
説明
Inclusion Criteria:
- Adults ≥18 years of age.
- Scheduled to undergo bilateral cataract extraction with LAL implantation as standard-of-care.
- Able to provide written informed consent.
- Able to comply with study visits and required assessments throughout the LAL adjustment and lock-in sequence.
Exclusion Criteria:
- Presence of ocular comorbidities in either eye that may affect visual outcomes or wavefront measurements, including but not limited to glaucoma, age-related macular degeneration, diabetic retinopathy, corneal disease, amblyopia, or prior refractive surgery.
- Intraoperative complications affecting IOL positioning, centration, or stability.
- Inability to obtain reliable iTrace measurements due to inadequate fixation or poor measurement quality.
- Participation in another interventional ophthalmic clinical study.
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 観測モデル:COHORT
- 時間の展望:PROSPECTIVE
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Objective Monocular Depth of Focus
時間枠:Baseline, prior to each UV adjustment, and prior to the first lock-in.
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Change in objective monocular depth of focus throughout the LAL UV adjustment and lock-in sequence, measured using the iTrace wavefront aberrometry system. Objective monocular depth of focus will be quantified using the VSOTF-based DOF profile and reported as the DOF range (D) at each timepoint. |
Baseline, prior to each UV adjustment, and prior to the first lock-in.
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Uncorrected Distance Visual Acuity
時間枠:Baseline, prior to each UV adjustment, and prior to the first lock-in.
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UDVA monocular and binocular |
Baseline, prior to each UV adjustment, and prior to the first lock-in.
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Uncorrected Near Visual Acuity
時間枠:Baseline, prior to each UV adjustment, and prior to the first lock-in.
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UNVA monocular and binocular |
Baseline, prior to each UV adjustment, and prior to the first lock-in.
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Best Corrected Distance Visual Acuity
時間枠:Baseline, prior to each UV adjustment, and prior to the first lock-in.
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BCDVA monocular |
Baseline, prior to each UV adjustment, and prior to the first lock-in.
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Manifest Refraction
時間枠:Baseline, prior to each UV adjustment, and prior to the first lock-in.
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Manifest refraction (sphere, cylinder, axis) |
Baseline, prior to each UV adjustment, and prior to the first lock-in.
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その他の成果指標
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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iTrace-derived angle kappa
時間枠:Baseline, prior to each UV adjustment, and prior to the first lock-in.
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Angle Kappa from the iTrace will be taken at each step |
Baseline, prior to each UV adjustment, and prior to the first lock-in.
|
協力者と研究者
スポンサー
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
その他の研究ID番号
- CEI-LAL-DOF-2026
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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