Rotational Stability of Two Soft Toric Contact Lens Designs
29. august 2026 opdateret af: Koçer Furkan Durukan, Bozok University
Comparison of Rotational Behavior of Soft Toric Contact Lenses With Different Stabilization Designs and Their Association With Ocular Biometric Parameters
This study compared the rotational behavior of two commercially available soft toric contact lenses with different stabilization designs and explored whether ocular biometric and refractive characteristics were associated with lens rotation.
Contact lens-naïve adults underwent baseline ocular biometry and were scheduled for two separate lens-fitting sessions in randomized order.
Lens rotation was measured 30 minutes after insertion in primary, right, left, upward, and downward gaze using slit-lamp biomicroscopy.
The study was designed as a two-period crossover comparison.
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
40
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
-
-
Yozgat
-
Yozgat, Yozgat, Tyrkiet (Türkiye), 66100
- Yozgat Bozok University Research and Application Hospital
-
-
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
- Voksen
Tager imod sunde frivillige
Ingen
Beskrivelse
Inclusion Criteria:
- Adults with astigmatic refractive error suitable for correction with the -commercially available toric contact lenses used in the study
- No prior experience with contact lens wear
- Healthy ocular surface examination
- Ability and willingness to provide written informed consent
Exclusion Criteria:
- History of corneal pathology
- Previous ocular surgery
- Active ocular disease
- Systemic disease affecting the eyes
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Andet
- Tildeling: Randomiseret
- Interventionel model: Crossover opgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Andet: ASD First, Modified Periballast Second
Participants received the accelerated stabilization design lens at the first fitting session and the modified periballast lens at the second fitting session after a 4-day interval.
|
Commercially available soft toric contact lens composed of senofilcon A, with an 8.6-mm base curve and 14.5-mm diameter, using an accelerated stabilization design.
Commercially available soft toric contact lens composed of lotrafilcon B, with an 8.7-mm base curve and 14.5-mm diameter, using a modified periballast stabilization design.
|
|
Andet: Modified Periballast First, ASD Second
Participants received the modified periballast lens at the first fitting session and the accelerated stabilization design lens at the second fitting session after a 4-day interval.
|
Commercially available soft toric contact lens composed of senofilcon A, with an 8.6-mm base curve and 14.5-mm diameter, using an accelerated stabilization design.
Commercially available soft toric contact lens composed of lotrafilcon B, with an 8.7-mm base curve and 14.5-mm diameter, using a modified periballast stabilization design.
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Overall Mean Absolute Contact Lens Rotation
Tidsramme: 30 minutes after lens insertion during each fitting session
|
Absolute lens rotation was measured in degrees using slit-lamp biomicroscopy in five gaze positions (primary, right, left, upward, and downward gaze).
For each lens design, the overall mean absolute rotation was calculated as the average of the absolute rotation measurements across the five gaze positions.
|
30 minutes after lens insertion during each fitting session
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
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)
2. maj 2026
Primær færdiggørelse (Faktiske)
1. juli 2026
Studieafslutning (Faktiske)
1. juli 2026
Datoer for studieregistrering
Først indsendt
26. august 2026
Først indsendt, der opfyldte QC-kriterier
26. august 2026
Først opslået (Faktiske)
31. august 2026
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
1. september 2026
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
29. august 2026
Sidst verificeret
1. august 2026
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- TORIC-ROT-2026-01
- 2026-GOKAEK-267_2026.04.01_98 (Anden identifikator: Yozgat Bozok University Clinical Research Ethics Committee)
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
JA
IPD-planbeskrivelse
De-identified individual participant data underlying the results reported in the published article, including demographic, refractive, ocular biometric, and contact lens rotation measurements, may be shared upon reasonable request.
No directly identifying information will be provided.
IPD-delingstidsramme
Data will be available beginning after publication of the primary study results and will remain available for 5 years following publication.
IPD-delingsadgangskriterier
Data may be provided to qualified researchers who submit a methodologically sound scientific proposal to the corresponding author.
Requests will be evaluated for scientific purpose, participant confidentiality, applicable ethical and institutional requirements, and compatibility with the original informed consent.
A data use agreement may be required where appropriate.
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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Ingen
Studerer et amerikansk FDA-reguleret enhedsprodukt
Ingen
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