Multicenter Dispensing Study of Biofinity Lenses in Extended Range
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
-
Ontario
-
Waterloo, Ontario, Canada, N2L 3G1
- CCLR, University of Waterloo
-
-
-
-
California
-
Berkeley, California, Forenede Stater, 94720-2020
- UC Berkeley Clinica Research Center
-
-
Indiana
-
Indianapolis, Indiana, Forenede Stater, 46266-6057
- CORL, Indiana University School of Optometry
-
-
Texas
-
Houston, Texas, Forenede Stater, 77204-2020
- TERTC, University of Houston
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Has had an oculo-visual examination in the last two years
- Is at least 18 years of age and has full legal capacity to volunteer
- Has read and understood the information consent letter
- Is willing and able to follow instructions and maintain the appointment schedule
- Is correctable to a visual acuity of 20/50 or better (in at least one eye) with their habitual vision correction
- Currently wears soft contact lenses
- They should require contact lens powers between -12.00 and -20.00D or between +8.00 and +15.00D
- Has clear corneas and no active ocular disease
- Demonstrates an acceptable fit with the study lenses.
Exclusion Criteria:
- Has any systemic disease affecting ocular health
- Is taking medication, such as antihistamine eye drops, oral and ophthalmic betaadrenergic blockers (e.g. Propanolol, Timolol), anticholinergics, and any prescribed or over-the-counter eye medication, except artificial tears or eye lubricants
- Have any active ocular disease and/or infection that would contraindicate contact lens wear.
- Active ocular disease is defined as infection or inflammation which requires therapeutic treatment. Mild (i.e. not considered clinically relevant) lid abnormalities (blepharitis, meibomian gland dysfunction, papillae), corneal and conjunctival staining and dry eye are not considered active ocular disease. Neovascularization and corneal scars are the result of previous hypoxia, infection or inflammation and are therefore not active.
- Has worn gas permeable contact lenses within the last month.
- Is aphakic
- Has undergone corneal refractive surgery.
- Is participating in any other type of clinical research study
- Female who is currently pregnant or is breast-feeding.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Eksperimentel: Biofinity XR
Participants dispensed Biofinity XR lenses over two weeks of lens wear
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Dryness (During Day and Dryness at Night)
Tidsramme: Baseline
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=cannot be worn, Extremely dry.
100=No dryness experienced at any time.)
Obtained habitual lens history at baseline.
|
Baseline
|
|
Dryness (During Day)
Tidsramme: Dispense
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=cannot be worn, Extremely dry.
100=No dryness experienced at any time.)
Obtained at dispense; Lens pair one dispensed at the baseline visit and Lens pair two dispensed at 2 weeks visit.
|
Dispense
|
|
Dryness (During Day and Dryness at Night)
Tidsramme: 2 Weeks
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=cannot be worn, Extremely dry.
100=No dryness experienced at any time.)
Obtained at two weeks.
|
2 Weeks
|
|
Comfort (Insertion, End of Day, Overall)
Tidsramme: Baseline
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=cannot be worn,Causes pain; 100=Cannot be felt ever) Obtained habitual lens history at baseline.
|
Baseline
|
|
Comfort (Insertion)
Tidsramme: Dispense
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=cannot be worn,Causes pain; 100=Cannot be felt ever) Obtained at dispense; Lens pair one dispensed at the baseline visit and Lens pair two dispensed at 2 weeks visit.
|
Dispense
|
|
Comfort (Insertion, End of Day, Overall)
Tidsramme: 2 Weeks
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=cannot be worn,Causes pain; 100=Cannot be felt ever) Obtained at 2 weeks.
|
2 Weeks
|
|
Ghosting (Multiple Images)
Tidsramme: Baseline
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=Extreame ghosting.
Cannot be worn.
100=No ghosting ever.)
Obtained habitual lens history at baseline.
|
Baseline
|
|
Ghosting (Multiple Images)
Tidsramme: Dispense
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=Extreme ghosting.
Cannot be worn.
100=No ghosting ever.)
Obtained at dispense; Lens pair one dispensed at the baseline visit and Lens pair two dispensed at 2 weeks visit.
|
Dispense
|
|
Ghosting (Multiple Images)
Tidsramme: 2 Weeks
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=Extreme ghosting.
Cannot be worn.
100=No ghosting ever.)
Obtained at 2 weeks.
|
2 Weeks
|
|
Hazing (Blurred Edges)
Tidsramme: Baseline
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=Extreame haze.
Cannot be worn.
100=No hazing experienced at any time.)
Obtained habitual lens history at baseline.
|
Baseline
|
|
Hazing (Blurred Edges)
Tidsramme: 2 Weeks
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=Extreme haze.
Cannot be worn.
100=No hazing experienced at any time.)
Obtained at 2 weeks.
|
2 Weeks
|
|
Vision Quality (During Day and at Night)
Tidsramme: Baseline
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=Extremely poor vision all the time.
Cannot function; 100=Excellent vision all of the time.)
Obtained habitual lens history at baseline.
|
Baseline
|
|
Vision Quality (During Day)
Tidsramme: Dispense
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=Extremely poor vision all the time.
Cannot function; 100=Excellent vision all of the time.)
Obtained at dispense; Lens pair one dispensed at the baseline visit and Lens pair two dispensed at 2 weeks visit.
|
Dispense
|
|
Vision Quality (During Day and at Night)
Tidsramme: 2 Weeks
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=Extremely poor vision all the time.
Cannot function; 100=Excellent vision all of the time.)
Obtained at 2 weeks.
|
2 Weeks
|
|
Handling (Insertion, Removal, Overall)
Tidsramme: Baseline
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=cannot be worn,Causes pain; 100=Cannot be felt ever) Obtained habitual lens history at baseline.
|
Baseline
|
|
Handling (Insertion, Removal, Overall)
Tidsramme: 2 weeks
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=cannot be worn,Causes pain; 100=Cannot be felt ever) Obtained at 2 weeks.
|
2 weeks
|
|
Overall Satisfaction of Comfort, Vision, Handling
Tidsramme: Dispense
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=Extremely dissatisfied; 100=Extremely satisfied.)
Obtained at dispense; Lens pair one dispensed at the baseline visit and Lens pair two dispensed at 2 weeks visit.
|
Dispense
|
|
Overall Satisfaction of Comfort, Vision, Handling
Tidsramme: Baseline
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=Extremely dissatisfied; 100=Extremely satisfied.)
Obtained habitual lens history at baseline.
|
Baseline
|
|
Overall Satisfaction of Comfort, Vision, Handling
Tidsramme: 2 Weeks
|
Subjective response of participant by questionnaire on a visual analog scale (0-100, 0=Extremely dissatisfied; 100=Extremely satisfied.)
Obtained at baseline at 2 weeks.
|
2 Weeks
|
|
Comfort Preference
Tidsramme: Dispense
|
Subjective response of participant by questionnaire on a likert scale (Prefer New Lenses Strongly, Prefer New Lenses Slightly, No Preference - both acceptable/both unacceptable, Prefer My Own Lenses Slightly, Prefer My Own Lenses Strongly) Obtained at dispense; Lens pair one dispensed at the baseline visit and Lens pair two dispensed at 2 weeks visit.
|
Dispense
|
|
Comfort Preference
Tidsramme: 2 Weeks
|
Subjective response of participant by questionnaire on a likert scale (Prefer New Lenses Strongly, Prefer New Lenses Slightly, No Preference - both acceptable/both unacceptable, Prefer My Own Lenses Slightly, Prefer My Own Lenses Strongly) Obtained at 2 weeks.
|
2 Weeks
|
|
Vision Preference
Tidsramme: Dispense
|
Subjective response of participant by questionnaire on a likert scale (Prefer New Lenses Strongly, Prefer New Lenses Slightly, No Preference - both acceptable/both unacceptable, Prefer My Own Lenses Slightly, Prefer My Own Lenses Strongly) Obtained at dispense; Lens pair one dispensed at the baseline visit and Lens pair two dispensed at 2 weeks visit.
|
Dispense
|
|
Vision Preference
Tidsramme: 2 Weeks
|
Subjective response of participant by questionnaire on a likert scale (Prefer New Lenses Strongly, Prefer New Lenses Slightly, No Preference - both acceptable/both unacceptable, Prefer My Own Lenses Slightly, Prefer My Own Lenses Strongly) Obtained at 2 weeks.
|
2 Weeks
|
|
Handling Preference
Tidsramme: 2 Weeks
|
Subjective response of participant by questionnaire on a likert scale (Prefer New Lenses Strongly, Prefer New Lenses Slightly, No Preference - both acceptable/both unacceptable, Prefer My Own Lenses Slightly, Prefer My Own Lenses Strongly) Obtained at 2 weeks.
|
2 Weeks
|
|
Overall Preference
Tidsramme: Dispense
|
Subjective response of participant by questionnaire on a likert scale (Prefer New Lenses Strongly, Prefer New Lenses Slightly, No Preference - both acceptable/both unacceptable, Prefer My Own Lenses Slightly, Prefer My Own Lenses Strongly) Obtained at dispense; Lens pair one dispensed at the baseline visit and Lens pair two dispensed at 2 weeks visit.
|
Dispense
|
|
Overall Preference
Tidsramme: 2 Weeks
|
Subjective response of participant by questionnaire on a likert scale (Prefer New Lenses Strongly, Prefer New Lenses Slightly, No Preference - both acceptable/both unacceptable, Prefer My Own Lenses Slightly, Prefer My Own Lenses Strongly) Obtained at 2 weeks.
|
2 Weeks
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Lens Centration - Habitual Lenses
Tidsramme: Baseline
|
Objective measurement by investigator.
(Assessed as optimum, slightly decentered, extremely decentered) Obtained for habitual lenses at baseline.
|
Baseline
|
|
Lens Centration
Tidsramme: Dispense
|
Objective measurement by investigator.
(Assessed as optimum, slightly decentered, extremely decentered) Obtained at baseline at dispense.
|
Dispense
|
|
Lens Centration
Tidsramme: 2 Weeks
|
Objective measurement by investigator.
(Assessed as optimum, slightly decentered, extremely decentered) Obtained at 2 weeks.
|
2 Weeks
|
|
Lens Movement - Habitual Lenses
Tidsramme: Baseline
|
Objective measurement by investigator of overall post-blink lens movement.
(Average Grade; Graded 0-4; 0=exceptionally tight, 2=optimal, 4=exceptionally loose) Obtained for habitual lenses at baseline.
|
Baseline
|
|
Lens Movement
Tidsramme: Dispense
|
Objective measurement by investigator of overall post-blink lens movement.
(Average Grade; Graded 0-4; 0=exceptionally tight, 2=optimal, 4=exceptionally loose) Obtained at dispense; Lens pair one dispensed at the baseline visit and Lens pair two dispensed at 2 weeks visit.
|
Dispense
|
|
Lens Movement
Tidsramme: 2 Weeks
|
Objective measurement by investigator of overall post-blink lens movement.
(Average Grade; Graded 0-4; 0=exceptionally tight, 2=optimal, 4=exceptionally loose) Obtained at 2 weeks wear.
|
2 Weeks
|
|
Overall Fit Acceptance
Tidsramme: Baseline
|
Objective measurement by investigator of overall fit acceptance.
(scale 0-4; 0=very poor, 4=very good) Obtained for habitual lenses at baseline.
|
Baseline
|
|
Overall Fit Acceptance
Tidsramme: Dispense
|
Objective measurement by investigator of overall fit acceptance.
(scale 0-4; 0=very poor, 4=very good) Obtained at dispense; Lens pair one dispensed at the baseline visit and Lens pair two dispensed at 2 weeks visit.
|
Dispense
|
|
Overall Fit Acceptance
Tidsramme: 2 Weeks
|
Objective measurement by investigator of overall fit acceptance.
(scale 0-4; 0=very poor, 4=very good) Obtained at 2 weeks.
|
2 Weeks
|
|
Visual Acuity
Tidsramme: Baseline
|
Objective measurement by investigator of monocular high and low contrast logMar visual acuity.
Visual Acuity High-Contrast (VA HC), Visual Acuity Low-Contrast (VA LC), Visual Acuity High-Contrast OU (VA HC OU), Visual Acuity Low-Contrast OU (VA LC OU).
Obtained for habitual lenses at baseline.
|
Baseline
|
|
Visual Acuity
Tidsramme: Dispense
|
Objective measurement by investigator of monocular high and low contrast logMar visual acuity.
Visual Acuity High-Contrast (VA HC), Visual Acuity Low-Contrast (VA LC), Visual Acuity High-Contrast OU (VA HC OU), Visual Acuity Low-Contrast OU (VA LC OU).
Obtained at dispense; Lens pair one dispensed at the baseline visit and Lens pair two dispensed at 2 weeks visit.
|
Dispense
|
|
Visual Acuity
Tidsramme: 2 Weeks
|
Objective measurement by investigator of monocular high and low contrast logMar visual acuity.
Visual Acuity High-Contrast (VA HC), Visual Acuity Low-Contrast (VA LC), Visual Acuity High-Contrast OU (VA HC OU), Visual Acuity Low-Contrast OU (VA LC OU).
Obtained at 2 weeks.
|
2 Weeks
|
|
Anterior Ocular Physiological Response
Tidsramme: Baseline
|
Ocular response assessed with the slit lamp using a Visual Analog Scale (0-4, 0=none, 4=severe).
Obtained for habitual lenses at baseline.
|
Baseline
|
|
Anterior Ocular Physiological Response
Tidsramme: 2 Weeks
|
Ocular response assessed with the slit lamp using a Visual Analog Scale (0-4, 0=none, 4=severe).
Obtained at 2 weeks.
|
2 Weeks
|
|
Average Wearing Time
Tidsramme: Baseline
|
Participant response when asked, "Number of hours worn today?" (hours per day) Obtained for habitual lens at baseline.
|
Baseline
|
|
Average Wearing Time
Tidsramme: 2 Weeks
|
Participant response when asked, "Number of hours worn today?" (hours per day) Obtained at 2 weeks.
|
2 Weeks
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Lyndon Jones, CCLR, University of Waterloo
- Ledende efterforsker: Meng Lin, CRC, University of California Berkeley
- Ledende efterforsker: Jan Bergmanson, TERTC, University of Houston
- Ledende efterforsker: Pete Kollbaum, CORL, Indiana University
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
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Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
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