Rotational Stability of the Acunex Vario Toric
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.
Studieoversikt
Status
Status
Forhold
Forhold
Intervensjon / Behandling
Intervensjon / Behandling
Detaljert 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.
Studietype
Studietype
Registrering (Antatt)
Registrering
Fase
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiekontakt
Studiekontakt
- Navn: Johannes Zeilinger, MD
- Telefonnummer: 57564 +43 1 91021
- E-post: office@viros.at
Studer Kontakt Backup
- Navn: Oliver Findl, Prim. Prof. Dr.
- Telefonnummer: 57564 +43 1 91021
- E-post: office@viros.at
Studiesteder
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Vienna, Østerrike, 1140
- Rekruttering
- Vienna Institute for Research in Ocular Surgery
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Ta kontakt med:
- Johannes Zeilinger, MD
- Telefonnummer: 57564 +43 1 91021
- E-post: office@viros.at
-
Ta kontakt med:
- Oliver Findl, Prim. Prof. Dr.
- Telefonnummer: 57564 +43 1 91021
- E-post: office@viros.at
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
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
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: N/A
- Intervensjonsmodell: Enkeltgruppeoppdrag
- Masking: Ingen (Open Label)
Antall våpen
Våpen og intervensjoner
Deltakergruppe / ArmDeltakergruppe / Arm |
Intervensjon / BehandlingIntervensjon / Behandling |
|---|---|
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Eksperimentell: Acunex Vario toric
Patient will recieve the Acunex Vario IOL during cataract surgery |
The Acunex Vario toric IOL, toric EDOF IOL, will be implanted |
Hva måler studien?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
IOL axis rotation
Tidsramme: 12 monthes
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The IOL axis rotation before and after cataract surgery will be analyzed with retroillumination photographs |
12 monthes
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
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
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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
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Refraction
Tidsramme: 12 months
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Refraction before and after cataract surgery will be determined using trial frame glasses and Jackson cross cylinders |
12 months
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Samarbeidspartnere og etterforskere
Sponsor
Sponsor
Etterforskere
Etterforskere
- Hovedetterforsker: Oliver Findl, Prim. Prof. Dr., Vienna Institute for Research in Ocular Surgery
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Studiestart
Primær fullføring (Antatt)
Primær fullføring
Studiet fullført (Antatt)
Studiet fullført
Datoer for studieregistrering
Først innsendt
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Først lagt ut
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Sist oppdatering lagt ut
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
Andre studie-ID-numre
- Acunex Vario toric
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
Legemiddel- og utstyrsinformasjon, studiedokumenter
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