Dispensing Study for the Phenacite Project
Dispensing Study for the Phenacite Project.
The investigational test lens was not the final optical design and the study was not used for design validation.
Studieöversikt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljerad beskrivning
Studietyp
Studietyp
Inskrivning (Faktisk)
Inskrivning
Fas
Fas
- Inte tillämpbar
Kontakter och platser
Studieorter
-
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Indiana
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Bloomington, Indiana, Förenta staterna, 47405
- Clinical Optics Research Lab (CORL) Indiana University School of Optometry, Indiana University
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Deltagandekriterier
Urvalskriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria:
- Oculo-visual examination in the last two years
- Between 18 and 35 years of age and has full legal capacity to volunteer
- Has read and understood the informed consent letter
- Is willing and able to follow instructions and maintain the appointment schedule
- Is correctable to a visual acuity of 20/25 or better (in each eye) with their habitual correction or 20/20 best corrected
- Currently wears, or has previously successfully worn, soft contact lenses between -1.00D and -4.00D
- Spherical Contact Lens Rx between -1.00 and -4.00 and spectacle cylinder ≤-0.75
- Has not worn lenses for at least 12 hours before the initial visit
- Has a subjective response at baseline, which indicates suitability for this study
- Currently spends a minimum of 4 hours a day; 5 days a week on digital devices and can replicate this time during the study period
- Is willing and able to wear the study contact lenses a minimum of 10 hours per day; 5 days a week.
Exclusion Criteria:
- Has never worn contact lenses before
- Any systemic disease affecting ocular health
- Is using any systemic or topical medications that will affect ocular health
- Has known sensitivity to the diagnostic pharmaceuticals or study products used in this study.
- Has any ocular pathology or anomaly that would affect the wearing of the lenses
- Has persistent, clinically significant corneal or conjunctival staining using sodium fluorescein dye
- Is aphakic
- Has anisometropia of >1.00
- Has undergone corneal refractive surgery
- Has strabismus
- Has any ocular amblyopia >= 1line of HC Visual Acuity
- Is participating in any other type of eye related clinical or research study
- Has participated in study CV-14-32.
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Behandling
- Tilldelning: Randomiserad
- Interventionsmodell: Crossover tilldelning
- Maskning: Dubbel
Antal vapen
Vapen och interventioner
Deltagargrupp / ArmDeltagargrupp / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Experimentell: Phenacite
Subjects will be randomized to wear the Phenacite contact lenses binocularly.
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Subjects will be randomized to wear the Phenacite contact lenses binocularly.
Subjects will be randomized to wear the comfilcon A contact lenses binocularly.
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Aktiv komparator: comfilcon A
Subjects will be randomized to wear the comfilcon A contact lenses binocularly.
|
Subjects will be randomized to wear the Phenacite contact lenses binocularly.
Subjects will be randomized to wear the comfilcon A contact lenses binocularly.
|
Vad mäter studien?
Primära resultatmått
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Subjective Ratings of Lens Comfort
Tidsram: Baseline (after 15 minutes of lens dispense)
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Subjective ratings of lens comfort.
Comfort Scale (0,100; 0=extremely uncomfortable/cannot tolerate; 100 = extremely comfortable/cannot be felt)
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Baseline (after 15 minutes of lens dispense)
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Subjective Ratings of Lens Comfort
Tidsram: 2 Weeks
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Subjective ratings of lens comfort.
Comfort Scale (0,100; 0=extremely uncomfortable/cannot tolerate; 100 = extremely comfortable/cannot be felt)
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2 Weeks
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Over Refraction for Optimized Distance Acuity
Tidsram: 2 weeks
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Over Refraction for optimized distance acuity measured using logMAR
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2 weeks
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Binocular Distance Visual Acuity - High Illumination High Contrast
Tidsram: Baseline (after 5 minutes of lens dispense)
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Binocular Distance Visual Acuity - High Illumination High Contrast was measured using logMAR
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Baseline (after 5 minutes of lens dispense)
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Binocular Distance Visual Acuity - High Illumination High Contrast
Tidsram: 2 weeks
|
Binocular Distance Visual Acuity - High Illumination High Contrast was measured using logMAR
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2 weeks
|
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Binocular Distance Visual Acuity - Low Illumination High Contrast
Tidsram: Baseline (after 5 minutes of lens dispense)
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Binocular Distance Visual Acuity - Low Illumination High Contrast was measured using logMAR
|
Baseline (after 5 minutes of lens dispense)
|
|
Binocular Distance Visual Acuity - Low Illumination High Contrast
Tidsram: 2 weeks
|
Binocular Distance Visual Acuity - Low Illumination High Contrast was measured using logMAR
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2 weeks
|
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Binocular Near Visual Acuity - High Illumination High Contrast
Tidsram: Baseline (after 5 minutes of lens dispense)
|
Binocular Near Visual Acuity - High Illumination High Contrast was measured using logMAR
|
Baseline (after 5 minutes of lens dispense)
|
|
Binocular Near Visual Acuity - High Illumination High Contrast
Tidsram: 2 weeks
|
Binocular Near Visual Acuity - High Illumination High Contrast was measured using logMAR
|
2 weeks
|
|
Binocular Near Visual Acuity - Low Illumination High Contrast
Tidsram: Baseline (after 5 minutes of lens dispense)
|
Binocular Near Visual Acuity - Low Illumination High Contrast was measured using logMAR
|
Baseline (after 5 minutes of lens dispense)
|
|
Binocular Near Visual Acuity - Low Illumination High Contrast
Tidsram: 2 weeks
|
Binocular Near Visual Acuity - Low Illumination High Contrast was measured using logMAR
|
2 weeks
|
Sekundära resultatmått
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Lens Fit - Post Blink Movement
Tidsram: Baseline (after 15 minutes of lens dispense)
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Investigator assessment of Amount of movement (to the nearest 0.1mm) immediately after the blink (0.1mm steps)
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Baseline (after 15 minutes of lens dispense)
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Lens Fit - Post Blink Movement
Tidsram: 2 weeks
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Investigator assessment of Amount of movement (to the nearest 0.1mm) immediately after the blink (0.1mm steps)
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2 weeks
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Push - Up Test for Lens Tightness
Tidsram: Baseline (after 15 minutes of lens dispense)
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Investigator assessment using Continuous Scale 0-100% (1% steps): 0%=Falls from cornea without lid support, 50%=Optimum, 100%=No movement
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Baseline (after 15 minutes of lens dispense)
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Push - Up Test for Lens Tightness
Tidsram: 2 weeks
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Investigator assessment using Continuous Scale 0-100% (1% steps): 0%=Falls from cornea without lid support, 50%=Optimum, 100%=No movement
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2 weeks
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Lens Mobility Rating
Tidsram: Baseline (after 15 minutes of lens dispense)
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Investigator assessment using 5 Categories in 0.50 steps: 0=Immobile - no lag in any versions, 1=Restricted - no lag in some directions but slight lag (0-0.25mm) in others, 2=Secure - slight lag (0.25-0.5mm in each version), 3=Unrestricted - freely lags in a controlled manner on all versions, but not excessive (0.5-1.0mm), 4=Very mobile - excessive lag (>1mm) on versions in all directions in 0.25 steps
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Baseline (after 15 minutes of lens dispense)
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Lens Mobility Rating
Tidsram: 2 weeks
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Investigator assessment using 5 Categories in 0.50 steps: 0=Immobile - no lag in any versions, 1=Restricted - no lag in some directions but slight lag (0-0.25mm) in others, 2=Secure - slight lag (0.25-0.5mm in each version), 3=Unrestricted - freely lags in a controlled manner on all versions, but not excessive (0.5-1.0mm), 4=Very mobile - excessive lag (>1mm) on versions in all directions in 0.25 steps
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2 weeks
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Overall Lens Fit Acceptance
Tidsram: Baseline (after 15 minutes of lens dispense)
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Investigator assessment using 5 Categories in 0.25 steps: 0=Can't be worn, 1=Poor - should not be dispensed although no immediate danger, 2=Fair, 3=Good, 4=Optimum in 0.25 steps
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Baseline (after 15 minutes of lens dispense)
|
|
Overall Lens Fit Acceptance
Tidsram: 2 weeks
|
Investigator assessment using 5 Categories in 0.25 steps: 0=Can't be worn, 1=Poor - should not be dispensed although no immediate danger, 2=Fair, 3=Good, 4=Optimum in 0.25 steps
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2 weeks
|
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Subjective Ratings for Vision Quality - Distance Vision
Tidsram: Baseline (after 15 minutes of lens dispense)
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Patient subjective scoring using 0-100 continuous scale for Distance Quality of Vision: 0=extremely poor vision all of the time.
Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time
|
Baseline (after 15 minutes of lens dispense)
|
|
Subjective Ratings for Vision Quality - Distance Vision
Tidsram: 2 weeks
|
Patient subjective scoring using 0-100 continuous scale for Distance Quality of Vision: 0=extremely poor vision all of the time.
Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time
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2 weeks
|
|
Subjective Ratings for Vision Quality - Near Vision
Tidsram: Baseline (after 15 minutes of lens dispense)
|
Patient subjective scoring using 0-100 continuous scale for Near Quality of Vision: 0=extremely poor vision all of the time.
Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time
|
Baseline (after 15 minutes of lens dispense)
|
|
Subjective Ratings for Vision Quality - Near Vision
Tidsram: 2 weeks
|
Patient subjective scoring using 0-100 continuous scale for Near Quality of Vision: 0=extremely poor vision all of the time.
Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time
|
2 weeks
|
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Subjective Ratings for Vision Quality - Computer Vision
Tidsram: Baseline (after 15 minutes of lens dispense)
|
Patient subjective scoring using 0-100 continuous scale for Computer Vision: 0=extremely poor vision all of the time.
Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time
|
Baseline (after 15 minutes of lens dispense)
|
|
Subjective Ratings for Vision Quality - Computer Vision
Tidsram: 2 weeks
|
Patient subjective scoring using 0-100 continuous scale for Computer Vision: 0=extremely poor vision all of the time.
Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time
|
2 weeks
|
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Subjective Ratings for Vision Quality - Overall Vision
Tidsram: Baseline (after 15 minutes of lens dispense)
|
Patient subjective scoring using 0-100 continuous scale for Overall Vision: 0=extremely poor vision all of the time.
Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time
|
Baseline (after 15 minutes of lens dispense)
|
|
Subjective Ratings for Vision Quality - Overall Vision
Tidsram: 2 weeks
|
Patient subjective scoring using 0-100 continuous scale for Overall Vision: 0=extremely poor vision all of the time.
Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time
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2 weeks
|
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Corneal Staining Extent
Tidsram: 2 weeks
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Corneal staining extent was assessed on a scale of 0-4 (0-No Staining, 1 - 1-15% of area, 2- 16-30% of area, 3- 31-45% of area, 4- >45% of area
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2 weeks
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Conjunctival Staining
Tidsram: 2 weeks
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Conjunctival staining was assessed on a scale of 0-4, 0.50 steps (0-None, 1 - Minimal diffuse punctuate, 2- Coalescent Punctuate, 3- confluent, 4- Deep confluent
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2 weeks
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Samarbetspartners och utredare
Sponsor
Sponsor
Utredare
Utredare
- Huvudutredare: Pete Kollbaun, OD PhD, CORL Indiana University
Studieavstämningsdatum
Studera stora datum
Studiestart
Studiestart
Primärt slutförande (Faktisk)
Primärt slutförande
Avslutad studie (Faktisk)
Avslutad studie
Studieregistreringsdatum
Först inskickad
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Första postat
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste uppdatering publicerad
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
Andra studie-ID-nummer
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