- ICH GCP
- Rejestr badań klinicznych w USA
- Badanie kliniczne NCT07740590
Visual Adaptation and Quality of Life After Different IOL Implantation Strategies (MMAQ-IOL)
Evaluation of Visual Adaptation and Optical Performance in Patients With Bilateral Multifocal or Mix-and-Match Intraocular Lens Implantation: A Longitudinal Observational Study
Przegląd badań
Status
Szczegółowy opis
Multifocal and mix-and-match intraocular lens (IOL) implantation strategies have been widely adopted to restore full-range vision after cataract surgery. However, patients often experience varying rates and trajectories of neuroadaptation to optical phenomena such as glare and halos.
This study prospectively observational tracks age-related cataract patients undergoing bilateral IOL implantation (homogeneous or mix-and-match combinations). Postoperative evaluations are systematically conducted across key follow-up time points (ranging from 1 week up to 6 months postoperatively). Primary evaluations involve standard ophthalmological measurements alongside validated visual questionnaires (including the MMAQ) to capture longitudinal adaptation patterns, spectacle independence, and overall visual satisfaction.
Typ studiów
Zapisy (Szacowany)
Kontakty i lokalizacje
Kontakt w sprawie studiów
- Nazwa: Xiangjun Fu, Ph.D.
- Numer telefonu: +86-28-87393999
- E-mail: 243981469@qq.com
Lokalizacje studiów
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Chengdu, Chiny
- Rekrutacyjny
- Sichuan Provincial People's Hospital
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Kontakt:
- Xiang Yang,, M.D
- Numer telefonu: +86-28-87393999
- E-mail: xiangyangttt@126.com
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Kryteria uczestnictwa
Kryteria kwalifikacji
Wiek uprawniający do nauki
- Dorosły
- Starszy dorosły
Akceptuje zdrowych ochotników
Metoda próbkowania
Badana populacja
Opis
Inclusion Criteria:
- Age 18 years or older with age-related cataract requiring bilateral phacoemulsification and intraocular lens (IOL) implantation
- Corneal astigmatism less than 0.75 D
- Good general health and willing to complete all postoperative follow-up visits
- Signed written informed consent
Exclusion Criteria:
- Previous ocular surgery or ocular trauma
- Coexisting ocular diseases affecting visual potential, such as corneal opacity, glaucoma, macular degeneration, or diabetic retinopathy
- Intraoperative or postoperative complications (e.g., posterior capsule rupture)
- Systemic diseases that may interfere with visual outcomes or follow-up compliance
Plan studiów
Jak projektuje się badanie?
Szczegóły projektu
Kohorty i interwencje
Grupa / Kohorta |
Interwencja / Leczenie |
|---|---|
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Dual focus + Dual focus group
Patients undergoing bilateral implantation of dual-focus intraocular lenses in both eyes
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Bilateral phacoemulsification with bifocal intraocular lens implantation in both eyes.
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Dual focus + EDOF group
Patients undergoing bilateral implantation of a dual-focus intraocular lens in one eye and an Extended Depth of Focus (EDOF) lens in the contralateral eye
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Bilateral phacoemulsification with bifocal intraocular lens implantation in one eye and EDOF intraocular lens implantation in the contralateral eye.
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Dual focus + Single focus group
Patients undergoing bilateral implantation of a dual-focus intraocular lens in one eye and a monofocal intraocular lens in the contralateral eye.
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Bilateral phacoemulsification with bifocal intraocular lens implantation in one eye and monofocal intraocular lens implantation in the contralateral eye.
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Co mierzy badanie?
Podstawowe miary wyniku
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
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Subjective Visual Adaptation Score (Multifocal Motor Adaptation Questionnaire, MMAQ)
Ramy czasowe: Preoperatively, and postoperatively at 1 week, 1 month, 3 months, and 6 months
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Assessed using the Multifocal Motor Adaptation Questionnaire (MMAQ), a custom-designed questionnaire developed by the research team to measure subjective visual adaptation and symptoms in patients following intraocular lens implantation.
Scores range from 0 to 100, with higher scores indicating higher levels of visual adaptation and satisfaction.
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Preoperatively, and postoperatively at 1 week, 1 month, 3 months, and 6 months
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Miary wyników drugorzędnych
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
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Total High-Order Aberrations (HOAs)
Ramy czasowe: Postoperatively at 1 month, 3 months, and 6 months
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Change in total high-order aberrations (3rd to 6th order RMS, measured in micrometers) from baseline to 1 month, 3 months, and 6 months postoperatively, evaluated using an ocular/corneal wavefront aberrometer under a standardized pupil diameter (e.g., 4.0 mm / 6.0 mm).
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Postoperatively at 1 month, 3 months, and 6 months
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Defocus Curve
Ramy czasowe: Postoperatively at 1 month, 3 months, and 6 months
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Visual acuity evaluated at varying lens powers ranging from +1.50 D to -4.00 D in 0.50 D steps to assess the range of clear vision
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Postoperatively at 1 month, 3 months, and 6 months
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Uncorrected Binocular Distance Visual Acuity (UDBVA)
Ramy czasowe: Preoperatively, and postoperatively at ,1 month, 3 months, and 6 months
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Change in uncorrected binocular distance visual acuity measured at 4 meters under photopic lighting conditions using standard Early Treatment Diabetic Retinopathy Study (ETDRS) visual acuity charts.
Lower LogMAR values indicate superior visual acuity.
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Preoperatively, and postoperatively at ,1 month, 3 months, and 6 months
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Spherical Aberration
Ramy czasowe: Postoperative 1 month, 3 months, and 6 months
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Change in spherical aberration ( Zernike coefficient, measured in micrometers) from baseline to 1 month, 3 months, and 6 months postoperatively, evaluated using an ocular/corneal wavefront aberrometer under a standardized pupil diameter (e.g., 4.0 mm / 6.0 mm).
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Postoperative 1 month, 3 months, and 6 months
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Horizontal Coma
Ramy czasowe: Postoperative 1 month, 3 months, and 6 months
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Change in horizontal coma ( Zernike coefficient, measured in micrometers) from baseline to 1 month, 3 months, and 6 months postoperatively, evaluated using an ocular/corneal wavefront aberrometer under a standardized pupil diameter (e.g., 4.0 mm / 6.0 mm).
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Postoperative 1 month, 3 months, and 6 months
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Vertical Coma
Ramy czasowe: Postoperative 1 month, 3 months, and 6 months
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Change in vertical coma Zernike coefficient, measured in micrometers) from baseline to 1 month, 3 months, and 6 months postoperatively, evaluated using an ocular/corneal wavefront aberrometer under a standardized pupil diameter (e.g., 4.0 mm / 6.0 mm).
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Postoperative 1 month, 3 months, and 6 months
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Total Coma RMS
Ramy czasowe: Postoperative 1 month, 3 months, and 6 months
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Change in total coma measured in micrometers) from baseline to 1 month, 3 months, and 6 months postoperatively, evaluated using an ocular/corneal wavefront aberrometer under a standardized pupil diameter (e.g., 4.0 mm / 6.0 mm).
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Postoperative 1 month, 3 months, and 6 months
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Uncorrected Binocular Intermediate Visual Acuity (UIBVA)
Ramy czasowe: Preoperatively, and postoperatively at 1 month, 3 months, and 6 months
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Change in uncorrected binocular intermediate visual acuity measured at 80 cm (and/or 66 cm) under photopic lighting conditions using standard Early Treatment Diabetic Retinopathy Study (ETDRS) visual acuity charts.
Lower LogMAR values indicate superior visual acuity.
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Preoperatively, and postoperatively at 1 month, 3 months, and 6 months
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Uncorrected Bincorrected Near Visual Acuity (UNBVA)
Ramy czasowe: Preoperatively, and postoperatively at 1 month, 3 months, and 6 months
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Change in uncorrected binocular near visual acuity measured at 40 cm under photopic lighting conditions ($85\ \text{cd/m}^2$) using standard Early Treatment Diabetic Retinopathy Study (ETDRS) visual acuity charts.
Lower LogMAR values indicate superior visual acuity.
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Preoperatively, and postoperatively at 1 month, 3 months, and 6 months
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Contrast Sensitivity
Ramy czasowe: Postoperative 1 month, 3 months, and 6 months
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Change in contrast sensitivity (logarithmic values) across standardized spatial frequencies (1.5, 3, 6, 12, and 18 cycles per degree) from baseline to 1 month, 3 months, and 6 months postoperatively.
Evaluated using a standardized contrast sensitivity chart (e.g., CSV-1000 or Optec 6500) under both photopic and mesopic lighting conditions (with and without glare).
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Postoperative 1 month, 3 months, and 6 months
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Współpracownicy i badacze
Śledczy
- Główny śledczy: Chao Qu, School of Medicine, University of Electronic Science and Technology of China
Daty zapisu na studia
Główne daty studiów
Rozpoczęcie studiów (Rzeczywisty)
Zakończenie podstawowe (Szacowany)
Ukończenie studiów (Szacowany)
Daty rejestracji na studia
Pierwszy przesłany
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy wysłany (Rzeczywisty)
Aktualizacje rekordów badań
Ostatnia wysłana aktualizacja (Rzeczywisty)
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia weryfikacja
Więcej informacji
Terminy związane z tym badaniem
Słowa kluczowe
Dodatkowe istotne warunki MeSH
Inne numery identyfikacyjne badania
- SCCHEC-2024-425
Plan dla danych uczestnika indywidualnego (IPD)
Planujesz udostępniać dane poszczególnych uczestników (IPD)?
Informacje o lekach i urządzeniach, dokumenty badawcze
Bada produkt leczniczy regulowany przez amerykańską FDA
Bada produkt urządzenia regulowany przez amerykańską FDA
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