Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

Rotational Stability of the Acunex Vario Toric

3. november 2026 opdateret af: Prim. Prof. Dr. Oliver Findl, MBA

Evaluation of the Rotational Stability of the Acunex Vario Toric Intraocular Lens

Efficacy of the rotational stability and astigmatism correction of a toric EDOF IOL, the Acunex Vario toric.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Recent advances in cataract surgery technology have transformed the procedure from a purely vision-restoring approach into a procedure for correcting presbyopia. Patients' resulting higher expectations regarding freedom from spectacles have led to advances in intraocular lens (IOL) technology in recent years. The implantation of a standard monofocal IOL designed to achieve emmetropia results in a high level of patient satisfaction with regard to distance vision. However, spectacles are still required for intermediate and near vision.

One approach to achieving freedom from spectacles at all distances is the use of multifocal IOLs. Compared with monofocal IOLs, however, these lenses are more frequently associated with photic phenomena such as glare and halos, as well as reduced contrast sensitivity. Another approach to minimize the need for spectacles is the use of IOLs with extended depth of focus (EDOF). These lenses feature an extended distance focus range that extends into the intermediate range, thereby offering high visual quality across a continuous focus range. Unlike trifocal IOLs, which split the light into different focal points, the extended focus of these IOLs is designed to improve contrast perception in the intermediate range and reduce light-related phenomena.

Furthermore, residual corneal astigmatism is an important factor in achieving post-operative freedom from spectacles, and its correction is necessary to achieve the best possible visual performance. The most widely used and effective approach to correcting corneal astigmatism is the implantation of a toric IOL. To ensure that these lenses achieve the desired effect, they must be positioned precisely along the intended axis, as any rotation of a toric IOL can reduce its ability to correct astigmatism.

Particularly in the case of IOLs designed to correct presbyopia, such as trifocal or EDOF lenses, it is therefore important to correct corneal astigmatism in order to achieve the best possible post-operative visual outcome. The aim of this study is therefore to analyze the efficacy and rotational stability of a toric EDOF IOL (Acunex Vario toric, AN6VT).

38 eyes from 38 patients will be included into the study, into each eye an AN6VT IOL will be implanted. Follow-up examinations will take place 1 hour, 1 week after surgery on the first eye and 1 week after surgery on the second eye, and 4-6 months post-operatively.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

38

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

  • Navn: Johannes Zeilinger, MD
  • Telefonnummer: 57564 +43 1 91021
  • E-mail: office@viros.at

Undersøgelse Kontakt Backup

  • Navn: Oliver Findl, Prim. Prof. Dr.
  • Telefonnummer: 57564 +43 1 91021
  • E-mail: office@viros.at

Studiesteder

      • Vienna, Østrig, 1140
        • Rekruttering
        • Vienna Institute for Research in Ocular Surgery
        • Kontakt:
          • Johannes Zeilinger, MD
          • Telefonnummer: 57564 +43 1 91021
          • E-mail: office@viros.at
        • Kontakt:
          • Oliver Findl, Prim. Prof. Dr.
          • Telefonnummer: 57564 +43 1 91021
          • E-mail: office@viros.at

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

21 år til 105 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Bilateral age-related cataract scheduled for cataract surgery
  • Age 21 or older
  • Predefined postoperative residual astigmatism to be < 0.5 D (calculated with Barrett total K toric calculator)
  • Calculated IOL power within the range of the investigated IOL
  • Pupil size ≥ 5 mm (in mydriasis)
  • Willingness to comply with the postoperative follow-up examination schedule
  • Written informed consent prior to surgery

Exclusion Criteria:

  • Previous ocular surgery or trauma
  • Extreme shallow anterior chamber
  • Uncontrolled systemic or ocular disease
  • Associated corneal pathologies (e.g., edema, scarring) or relevant other ophthalmic diseases that may result in altered visual outcome or lens stability (e.g., pseudoexfoliation syndrome, floppy iris syndrome, glaucoma, retinal disease)
  • Concurrent participation in another clinical investigation
  • Pregnancy or lactation (pregnancy test will be performed in women of reproductive age)

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Acunex Vario toric

Patient will recieve the Acunex Vario IOL during cataract surgery

The Acunex Vario toric IOL, toric EDOF IOL, will be implanted

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
IOL axis rotation
Tidsramme: 12 monthes

The IOL axis rotation before and after cataract surgery will be analyzed with retroillumination photographs

12 monthes

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Distance visual acuity
Tidsramme: 12 months

Uncorrected and corrected distance visual acuity before and after cataract surgery will be determined using ETDRS-charts in a distance of 4 metres

12 months
Intermediate visual acuity
Tidsramme: 12 months

Uncorrected and corrected intermediate visual acuity before and after cataract surgery will be determined using ETDRS-charts in a distance of 66 centimetres

12 months
Refraction
Tidsramme: 12 months

Refraction before and after cataract surgery will be determined using trial frame glasses and Jackson cross cylinders

12 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Efterforskere

  • Ledende efterforsker: Oliver Findl, Prim. Prof. Dr., Vienna Institute for Research in Ocular Surgery

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

27. marts 2026

Primær færdiggørelse (Anslået)

1. december 2027

Studieafslutning (Anslået)

1. juli 2028

Datoer for studieregistrering

Først indsendt

3. november 2026

Først indsendt, der opfyldte QC-kriterier

3. november 2026

Først opslået (Faktiske)

9. november 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

9. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

3. november 2026

Sidst verificeret

1. november 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • Acunex Vario toric

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

UBESLUTET

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .