Visual Acuity
Conditions
Brief summary
This is a single-masked, randomized-controlled, dispensing clinical trial. A total of approximately 60 eligible hyperopic subjects will be targeted to complete this study.
Interventions
TEST Lens
TEST Lens Sphere
CONTROL Lens
CONTROL Lens Sphere
Sponsors
Study design
Eligibility
Inclusion criteria
* Potential subjects must satisfy all the following criteria to be enrolled in the study: 1. The subject must read, understand, and sign the STATEMENT OF INFORMED CONSENT and receive a fully executed copy of the form. 2. The subject must appear able and willing to adhere to the instructions set forth in this clinical protocol. 3. The subject must be between 40 and 70 years of age (inclusive). 4. The subject's distance spherical equivalent refraction must be in the range of -1.25 D to -3.75 D in each eye. 5. The subject's refractive cylinder must be ≤0.75 D in each eye. 6. The subject's ADD power must be in the range of +0.75 D to +2.50 D. 7. The subject must have distance best corrected visual acuity of 20/20-3 or better in each eye. 8. Subjects must own a wearable pair of spectacles if required for their distance vision. 9. The subject must be an adapted soft contact lens wearer in both eyes (i.e. worn lenses a minimum of 2 days per week for at least 8 hours per wear day, for 1 month of more duration). 10. The subject must either already be wearing a presbyopic contact lens correction (e.g., reading spectacles over contact lenses, multifocal or monovision contact lenses, etc.) or if not respond positively to at least one symptom on the Presbyopic Symptoms Questionnaire.
Exclusion criteria
* Potential subjects who meet any of the following criteria will be excluded from participating in the study: 1. Currently pregnant or lactating. 2. Any active or ongoing ocular or systemic allergies that may interfere with contact lens wear. 3. Any active or ongoing systemic disease, autoimmune disease, or use of medication, which may interfere with contact lens wear. This may include, but not be limited to, diabetes, hyperthyroidism, Sjögren's syndrome, xerophthalmia, acne rosacea, Stevens-Johnson syndrome, and immunosuppressive diseases or any infectious diseases (e.g. hepatitis, tuberculosis). 4. Clinically significant (Grade 3 or 4) corneal edema, corneal vascularization, corneal staining, tarsal abnormalities or bulbar injection, or any other corneal or ocular abnormalities which would contraindicate contact lens wear. 5. Entropion, ectropion, extrusions, chalazia, recurrent styes, dry eye, glaucoma, history of recurrent corneal erosions. 6. Any previous, or planned, ocular or intraocular surgery (e.g. radial keratotomy, PRK, LASIK, lid procedures, cataract surgery, retinal surgery, etc.). 7. A history of amblyopia, strabismus or binocular vision abnormality. 8. Any current ocular infection or inflammation. 9. Any current ocular abnormality that may interfere with contact lens wear. 10. Use of any of the following oral medications within 1 week prior to enrollment: oral retinoid isotretinoin (e.g. Accutane), oral tetracyclines, topical scopolamine, oral antihistamines (e.g., Chlor-Trimeton, and Benadryl), systemic steroids. 11. Use of any ocular medication, with the exception of rewetting drops. 12. History of herpetic keratitis. 13. Participation in any contact lens or lens care product clinical trial within 30 days prior to study enrollment. 14. Employee or immediate family member of an employee of clinical site (e.g., Investigator, Coordinator, Technician). 15. Any known hypersensitivity or allergic reaction to Optifree®Replenish® multipurpose care solution or Eye-Cept® rewetting drop solution.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Vision Scores | 2-Week Follow-up | Overall quality of 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. |
| Vision Scores Comparison Between Test and Control | 2-Week Follow-up | Overall quality of 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. |
Countries
United States
Participant flow
Recruitment details
In total, 71 subjects were enrolled in this study of which, 70 subjects were dispensed at least 1 study lens, 1subject failed to meet all eligibility criteria. Of those dispensed a study lens, 61 subjects completed the study while, 9 were discontinued from the study.
Participants by arm
| Arm | Count |
|---|---|
| Dispensed Subjects All subjects dispensed at least one study lens. | 70 |
| Total | 70 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| Period 1 | Adverse Event | 1 | 0 |
| Period 1 | Lost to Follow-up | 1 | 1 |
| Period 1 | Physician Decision | 0 | 1 |
| Period 1 | Study related symptoms or complaints | 2 | 1 |
| Period 1 | Withdrawal by Subject | 0 | 1 |
| Period 2 | Adverse Event | 1 | 0 |
Baseline characteristics
| Characteristic | Dispensed Subjects |
|---|---|
| Age, Continuous | 56.1 Years STANDARD_DEVIATION 6.87 |
| Race/Ethnicity, Customized Black or African American | 2 Count of Participants |
| Race/Ethnicity, Customized Other | 1 Count of Participants |
| Race/Ethnicity, Customized White | 67 Count of Participants |
| Region of Enrollment United States | 70 Participants |
| Sex: Female, Male Female | 59 Participants |
| Sex: Female, Male Male | 11 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 0 / 70 | 0 / 70 |
| other Total, other adverse events | 0 / 70 | 0 / 70 |
| serious Total, serious adverse events | 0 / 70 | 0 / 70 |
Outcome results
Vision Scores
Overall quality of 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: 2-Week Follow-up
Population: All subjects that completed the study without a major protocol deviation.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Test | Vision Scores | Period 1 | 42.2 units on a scale | Standard Deviation 13.68 |
| Test | Vision Scores | Period 2 | 52.4 units on a scale | Standard Deviation 22.77 |
| Control | Vision Scores | Period 1 | 55.3 units on a scale | Standard Deviation 22.99 |
| Control | Vision Scores | Period 2 | 41.8 units on a scale | Standard Deviation 14.92 |
Vision Scores Comparison Between Test and Control
Overall quality of 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: 2-Week Follow-up
Population: All subjects that completed the study without a major protocol deviation.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Test | Vision Scores Comparison Between Test and Control | Period 1 | 42.2 units on a scale | Standard Deviation 13.68 |
| Test | Vision Scores Comparison Between Test and Control | Period 2 | 52.4 units on a scale | Standard Deviation 22.77 |
| Control | Vision Scores Comparison Between Test and Control | Period 1 | 55.3 units on a scale | Standard Deviation 22.99 |
| Control | Vision Scores Comparison Between Test and Control | Period 2 | 41.8 units on a scale | Standard Deviation 14.92 |