Euclid Phoenix レンズ設計トライアル 2
Euclid Phoenix レンズ設計トライアル その 2
Lens wettability and subjective comfort of Euclid orthokeratology lenses with and without an enhanced coating will be compared in 50 children. Axial elongation will be monitored in pediatric patients who qualify and consent.
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
詳細な説明
This clinical investigation is a prospective, randomized, double-masked, two-arm non-crossover trial. Existing Euclid orthokeratology wearers are randomized to be fit in lenses either with the standard lens coating or with the enhanced lens coating containing MPC. Subjects are evaluated at Dispense (Day 0), 1-Day, 2-Week, 1-Month, and 3-Months. Participants under the age of 17 are presented with the option to participate in an optional 9-month study extension, over which axial length is monitored.
The primary objective of this trial is to provide an assessment of the lens wettability and patient comfort with an enhanced surface treatment for the Emerald Lens design when used by practitioners with moderate experience with fitting Euclid orthokeratology lenses.
The hypothesis to be tested is that the proportion of participants with a lens wettability score of > 3 (on a 5 point scale) with the enhanced surface treatment will be greater than that of the current lens surface, using a 1 to 5 scale
The primary outcome variable is lens wettability as measured on eye using a 1 to 5 scale
This clinical investigation will be a prospective, randomized, double-masked two-arm non-crossover trial.
研究の種類
研究の種類
入学 (実際)
入学
段階
段階
- 適用できない
連絡先と場所
研究場所
-
-
Minnesota
-
Edina、Minnesota、アメリカ、55436
- Cornea and Contact Lens Institute of Minnesota
-
Sartell、Minnesota、アメリカ、56377
- Pinecone Vision Center
-
-
New Jersey
-
North Brunswick、New Jersey、アメリカ、08902
- Somerset Eye Care
-
-
Tennessee
-
Memphis、Tennessee、アメリカ、38104
- Southern College of Optometry
-
-
Washington
-
Kirkland、Washington、アメリカ、98034
- Specialty Eyecare Group
-
-
参加基準
適格基準
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
説明
Inclusion Criteria:
-
Be of legal age or, if under legal age have written consent of their parent or guardian to participate.
-
Sign written Informed Consent (and the California Bill of Rights, if applicable).
-
Ages 6-35 (inclusive) and able to understand and assent to participation
-
Current wearers of Euclid Emerald (Oprifocon A) Orthokeratology lenses, which at initiation of fitting, had
- Need of optical correction for myopia, from -1.00 to -5.00 Diopters (D).
- Refractive astigmatism of less than -1.50 D.
-
Have a minimum Best Spectacle Corrected Visual Acuity (BSCVA) of 20/40 or better in each eye.
-
Have acceptable or optimal fit with study lenses (once fitting has been completed) and be willing to wear these lenses as directed for the duration of the study.
-
On examination, have ocular findings considered to be within normal limits, including:
- No evidence of active infection involving the conjunctiva, lids or adnexa.
- No evidence of structural abnormalities of the lid, conjunctiva or adnexal tissue considered significant by the investigator to include minimum levels (Grade 2 or less) of tarsal-conjunctival abnormalities
- Clear corneas with no evidence of edema, staining, opacities, corneal neovascularization greater than a trace amount (i.e. All vessels extending less than 1.5 mm from the limbus); all as observed on slit lamp examination.
- No iritis.
- No herpes keratitis (recurrent or otherwise) or other active ocular disease that would contraindicate lens wear or lessen attainability of VA sought in this study (20/40 or better).
- No evidence of dry eye or meibomian gland dysfunction
-
Normal binocularity (no amblyopia or strabismus, and no anisometropia of greater than 2.00D)
-
Be willing and able to follow instructions and attend the schedule of follow-up visits.
Exclusion Criteria:
- Does not meet the any of the above inclusion criteria
- Not able or willing to provide informed consent and assent
- Requires concurrent ocular medication
- Eye injury or surgery within twelve weeks immediately prior to enrollment
- Pre-existing ocular condition that would preclude contact lens fitting
- Currently enrolled in an ophthalmic clinical trial
- Pregnant or lactating or expect to become pregnant during the trial
- Evidence of systemic or ocular abnormality, infection or disease likely to affect successful wear of contact lenses or use of their accessory solutions.
- Allergy or sensitivity to any product used in this trial
- Any systemic disease including autoimmune disease, immunocompromising diseases, connective tissue disease, clinically significant atopic diseases, insulin dependent diabetes, use of medications including corticosteroids and antimetabolites that may affect the eye or be exaggerated by contact lenses.
- Strabismus/amblyopia
- Habitual uncorrected anisometropia ≥ 2.00D
- Subjects who have undergone corneal refractive surgery
- Subjects with severe corneal irregularity contraindicating lens wear
- Inability to wear contact lenses, or an unacceptable contact lens fit
- Poor or unacceptable fit with any study lens
- Employees, staff or family members of personnel at the site
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
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:4倍
アーム数
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
|
実験的:Euclid orthokeartology (standard coating)
Euclid Orthokeratology Contact Lenses are lathe cut contact lenses with spherical posterior surfaces. The posterior curve is selected to properly fit an individual eye for orthokeratology and the anterior curve is selected to provide the necessary optical power for a temporary reduction of myopia. A peripheral curve system on the posterior surface allows tear exchange between the lens and the cornea. |
Lens with the current coating |
|
実験的:Euclid orthokeartology (enhanced coating)
Euclid Orthokeratology Contact Lenses are lathe cut contact lenses with spherical posterior surfaces. The posterior curve is selected to properly fit an individual eye for orthokeratology and the anterior curve is selected to provide the necessary optical power for a temporary reduction of myopia. A peripheral curve system on the posterior surface allows tear exchange between the lens and the cornea. |
Lens with the enhanced coating |
この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Lens wettability
時間枠:12 months
|
Lens wettability as measured on eye using a 1 to 5 scale (5 better) |
12 months
|
二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Patient comfort ratings
時間枠:12 months
|
Patient comfort as measured by patient reported outcome using a 1 to 5 scale (5 better) |
12 months
|
協力者と研究者
研究記録日
主要日程の研究
研究開始 (実際)
研究開始
一次修了 (実際)
一次修了
研究の完了 (実際)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
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
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
その他の研究ID番号
- EU-PHX-RCT-002
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
米国で製造され、米国から輸出された製品。
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