Visual Acuity
Conditions
Brief summary
This is a bilateral, dispensing, randomized, controlled, double-masked, 2×2 cross-over study to evaluate the clinical performance of ACUVUE OASYS® 1-Day for Astigmatism contact lenses produced on a recently qualified manufacturing line.
Interventions
TEST
CONTROL
Sponsors
Study design
Eligibility
Inclusion criteria
\- Potential subjects must satisfy all of the following criteria to be enrolled in the study: The subject must: 1. Read, understand, and sign the STATEMENT OF INFORMED CONSENT and receive a fully executed copy of the form. 2. Appear able and willing to adhere to the instructions set forth in this clinical protocol. 3. Be between 18 and 39 (inclusive) years of age at the time of screening. 4. By self-report, habitually wear soft contact lenses in both eyes in a daily reusable or daily disposable wear modality (i.e. not extended wear modality). Habitual wear is defined as a minimum of 6 hours of wear per day, for a minimum of 2 days per week during the past month. 5. Possess a wearable pair of spectacles that provide correction for distance vision. 6. Have the spherical component of their vertex-corrected distance refraction must be between -0.875 to -4.625 DS (inclusive) in each eye. 7. Have the magnitude of the cylindrical component of their vertex-corrected distance refraction between 0.625 DC and 1.625 DC in both eyes. 8. Have the cylinder axis of their distance refraction between 165° and 15° (i.e., 180±15°, inclusive) or between 75° and 105° (i.e., 90±15°, inclusive) in each eye. 9. Have best corrected monocular distance visual acuity of 20/30 or better in each eye.
Exclusion criteria
\- Potential subjects who meet any of the following criteria will be excluded from participating in the study: The subject must not: 1. Be currently pregnant or lactating. 2. Be diabetic. 3. Be currently using any ocular medications or have any ocular infection of any type. 4. By self-report, have any ocular or systemic disease, allergies, infection, or use of medication that might contraindicate or interfere with contact lens wear, or otherwise compromise study endpoints, including infectious disease (e.g., hepatitis, tuberculosis), contagious immunosuppressive disease (e.g., Human Immunodeficiency Virus \[HIV\]), autoimmune disease (e.g. rheumatoid arthritis, Sjögren's syndrome), or history of serious mental illness or seizures. 5. Have habitually worn rigid gas permeable (RGP) lenses, orthokeratology lenses, or hybrid lenses (e.g. SynergEyes, SoftPerm) within the past 6 months. 6. Be currently wearing monovision or multifocal contact lenses. 7. Be currently wearing lenses in an extended wear modality. 8. Have a history of strabismus or amblyopia. 9. Be an employee (e.g., Investigator, Coordinator, Technician) or immediate family member of an employee (including partner, child, parent, grandparent, grandchild or sibling of the employee or their spouse) of the clinical site. 10. Have participated in a contact lens or lens care product clinical trial within 7 days prior to study enrollment. 11. Have clinically significant (grade 3 or higher on the FDA grading scale) slit lamp findings (e.g., corneal edema, neovascularization or staining, tarsal abnormalities or bulbar injection) or other corneal or ocular disease or abnormalities that contraindicate contact lens wear or may otherwise compromise study endpoints (including entropion, ectropion, chalazia, recurrent styes, glaucoma, history of recurrent corneal erosions, aphakia, moderate or above corneal distortion, herpetic keratitis). 12. Have fluctuations in vision due to clinically significant dry eye or other ocular conditions. 13. Have had or have planned (within the study period) any ocular or intraocular surgery (e.g., radial keratotomy, PRK, LASIK, iridotomy, retinal laser photocoagulation, etc.).
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| CLUE Comfort Score | Fitting, 1-Week Follow-up | Overall comfort was assessed using the Contact Lens User Experience™ (CLUE) questionnaire. CLUE is a validated patient-reported outcomes (PRO) questionnaire to assess patient experience attributes of soft contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Derived CLUE scores using Item Response Theory (IRT) follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response with a range of 0-120. |
| CLUE Vision Score | Fitting, 1-Week Follow-up | Overall vision was assessed using the Contact Lens User Experience™ (CLUE) questionnaire. CLUE is a validated patient-reported outcomes (PRO) questionnaire to assess patient experience attributes of soft contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Derived CLUE scores using Item Response Theory (IRT) follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response with a range of 0-120. |
| CLUE Handling Score | Fitting, 1-Week Follow-up | Overall handling was assessed using the Contact Lens User Experience™ (CLUE) questionnaire. CLUE is a validated patient-reported outcomes (PRO) questionnaire to assess patient experience attributes of soft contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Derived CLUE scores using Item Response Theory (IRT) follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response with a range of 0-120. |
| Monocular Visual Performance (LogMAR) | 1-Week Follow-up | Visual performance was calculated as monocular contact lens-corrected distance visual acuity using a Logarithm of Minimal Angle of Resolution (logMAR) visual acuity scale. This was evaluated under high luminance and high contrast conditions (HLHC) at 4 meters from Early Treatment Diabetic Retinopathy Study (ETDRS) charts at the 1-week follow-up visit. Lower visual performance values indicate better vision. Two measurements were performed for each eye. The average visual performance was reported for each lens type. |
| Lens Rotation | Post-Fitting at 1-minute, at 3-minute | Lens rotation was recorded from direction and magnitude in degrees to the nearest degree at one and three minutes following lens insertion during settling period. All lenses in this study have scribe marks at 6 o'clock and 12 o'clock positions and rotation measurements were made relative to a vertical reference line. |
| Settled Rotation | Fitting, 1-Week Follow-up | Mean settled rotation was calculated from all repeated measures of signed lens orientation upon settling for each subject/eye/lens. |
Countries
United States
Participant flow
Recruitment details
A total of 72 subjects were enrolled in this study. Of those enrolled, a total of 71 subjects were assigned to one of two wear sequences; while one subject was a screen failure and/or not assigned. Of the total assigned subjects, 68 subjects completed the study while, 3 subjects were discontinued from the study.
Participants by arm
| Arm | Count |
|---|---|
| Dispensed Subject All subjects dispensed a study article. | 71 |
| Total | 71 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| Period 1 | Adverse Event | 1 | 0 |
| Period 1 | Non Compliance | 1 | 0 |
| Period 2 | Unsatisfactory Lens Fitting due to Test Article | 1 | 0 |
Baseline characteristics
| Characteristic | Dispensed Subject |
|---|---|
| Age, Continuous | 29.5 years STANDARD_DEVIATION 5.76 |
| Race/Ethnicity, Customized Asian | 1 participants |
| Race/Ethnicity, Customized Black or African American | 2 participants |
| Race/Ethnicity, Customized Other | 1 participants |
| Race/Ethnicity, Customized White | 67 participants |
| Region of Enrollment United States | 71 participants |
| Sex: Female, Male Female | 47 Participants |
| Sex: Female, Male Male | 24 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 0 / 71 | 0 / 71 |
| other Total, other adverse events | 0 / 71 | 0 / 71 |
| serious Total, serious adverse events | 0 / 71 | 0 / 71 |
Outcome results
CLUE Comfort Score
Overall comfort was assessed using the Contact Lens User Experience™ (CLUE) questionnaire. CLUE is a validated patient-reported outcomes (PRO) questionnaire to assess patient experience attributes of soft contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Derived CLUE scores using Item Response Theory (IRT) follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response with a range of 0-120.
Time frame: Fitting, 1-Week Follow-up
Population: Subjects that completed all study visits without a major protocol deviation.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Test | CLUE Comfort Score | Fitting | 65.95 Units on a scale | Standard Deviation 18.645 |
| Test | CLUE Comfort Score | 1-Week Follow-up | 67.39 Units on a scale | Standard Deviation 20.024 |
| Control | CLUE Comfort Score | Fitting | 65.13 Units on a scale | Standard Deviation 18.849 |
| Control | CLUE Comfort Score | 1-Week Follow-up | 70.80 Units on a scale | Standard Deviation 22.742 |
CLUE Handling Score
Overall handling was assessed using the Contact Lens User Experience™ (CLUE) questionnaire. CLUE is a validated patient-reported outcomes (PRO) questionnaire to assess patient experience attributes of soft contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Derived CLUE scores using Item Response Theory (IRT) follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response with a range of 0-120.
Time frame: Fitting, 1-Week Follow-up
Population: Subjects that completed all study visits without a major protocol deviation.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Test | CLUE Handling Score | Fitting | 73.56 Units on a scale | Standard Deviation 19.057 |
| Test | CLUE Handling Score | 1--Week Follow-up | 70.61 Units on a scale | Standard Deviation 21.048 |
| Control | CLUE Handling Score | Fitting | 72.71 Units on a scale | Standard Deviation 20.76 |
| Control | CLUE Handling Score | 1--Week Follow-up | 71.83 Units on a scale | Standard Deviation 19.74 |
CLUE Vision Score
Overall vision was assessed using the Contact Lens User Experience™ (CLUE) questionnaire. CLUE is a validated patient-reported outcomes (PRO) questionnaire to assess patient experience attributes of soft contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Derived CLUE scores using Item Response Theory (IRT) follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response with a range of 0-120.
Time frame: Fitting, 1-Week Follow-up
Population: Subjects that completed all study visits without a major protocol deviation.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Test | CLUE Vision Score | Fitting | 70.14 Units on a scale | Standard Deviation 15.979 |
| Test | CLUE Vision Score | 1-Week Follow-up | 68.33 Units on a scale | Standard Deviation 18.349 |
| Control | CLUE Vision Score | Fitting | 69.64 Units on a scale | Standard Deviation 15.767 |
| Control | CLUE Vision Score | 1-Week Follow-up | 72.40 Units on a scale | Standard Deviation 19.381 |
Lens Rotation
Lens rotation was recorded from direction and magnitude in degrees to the nearest degree at one and three minutes following lens insertion during settling period. All lenses in this study have scribe marks at 6 o'clock and 12 o'clock positions and rotation measurements were made relative to a vertical reference line.
Time frame: Post-Fitting at 1-minute, at 3-minute
Population: Subjects that completed all study visits without a major protocol deviation.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Test | Lens Rotation | At 1-minute | -1.7 Degrees | Standard Deviation 14.65 |
| Test | Lens Rotation | At 3-minute | -1.1 Degrees | Standard Deviation 4.55 |
| Control | Lens Rotation | At 1-minute | -2.0 Degrees | Standard Deviation 14.94 |
| Control | Lens Rotation | At 3-minute | -0.8 Degrees | Standard Deviation 4.88 |
Monocular Visual Performance (LogMAR)
Visual performance was calculated as monocular contact lens-corrected distance visual acuity using a Logarithm of Minimal Angle of Resolution (logMAR) visual acuity scale. This was evaluated under high luminance and high contrast conditions (HLHC) at 4 meters from Early Treatment Diabetic Retinopathy Study (ETDRS) charts at the 1-week follow-up visit. Lower visual performance values indicate better vision. Two measurements were performed for each eye. The average visual performance was reported for each lens type.
Time frame: 1-Week Follow-up
Population: Subjects that completed all study visits without a major protocol deviation.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Test | Monocular Visual Performance (LogMAR) | -0.108 LogMAR | Standard Deviation 0.0703 |
| Control | Monocular Visual Performance (LogMAR) | -0.112 LogMAR | Standard Deviation 0.0679 |
Settled Rotation
Mean settled rotation was calculated from all repeated measures of signed lens orientation upon settling for each subject/eye/lens.
Time frame: Fitting, 1-Week Follow-up
Population: Subjects that completed all study visits without a major protocol deviation.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Test | Settled Rotation | Fitting | -0.9 Degrees | Standard Deviation 2.69 |
| Test | Settled Rotation | 1-Week Follow-up | -1.8 Degrees | Standard Deviation 3.29 |
| Control | Settled Rotation | Fitting | -1.3 Degrees | Standard Deviation 2.8 |
| Control | Settled Rotation | 1-Week Follow-up | -1.6 Degrees | Standard Deviation 3.26 |