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Clinical Performance of Hydrogel vs. Silicone Hydrogel Contact Lenses

Non-Dispensing Fitting Study Comparing the Clinical Performance of Hydrogel vs. Silicone Hydrogel Sphere Design Contact Lenses

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02131402
Enrollment
60
Registered
2014-05-06
Start date
2014-05-31
Completion date
2014-06-30
Last updated
2017-04-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Myopia

Brief summary

The aim of this non-dispensing fitting study is to evaluate the subjective comfort, lens handling, lens fitting characteristics and visual acuity of different hydrogel lens designs versus silicone hydrogel lenses

Detailed description

This is a 60-subject, double masked, randomized, contra lateral, non-dispensing fitting trial comparing different lens materials (hydrogel vs silicone hydrogel). It is anticipated that this study will involve 2 visits, for each lens pair, as follows: Visits: V1 (lens dispensing), V2 (1 hour post lens settling). Each subject will be randomized to wear the test and control lenses in a series of three short fitting comparisons.

Interventions

Contralateral pair of study lenses. Test lens (enfilcon A) in one eye and a control lens (ocufilcon D) in the contra lateral eye.

Contralateral pair of study lenses. Test lens (enfilcon A) in one eye and a control lens (omafilcon A) in the contra lateral eye.

Contralateral pair of study lenses. Test lens (enfilcon A) in one eye and a control lens (methafilcon A) in the contra lateral eye.

Sponsors

CooperVision, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

* Is between 18 and 40 years of age (inclusive) * Has had a self-reported visual exam in the last two years * Is an adapted soft CL (Contact Lens) wearer * Has a CL spherical prescription between - 1.00 and - 10.00 (inclusive) * Has a spectacle cylinder up to 0.75D (Diopter) in each eye. * Can achieve best corrected spectacle distance visual acuity of 20/25 (0.10 logMAR) or better in each eye. * Can achieve a distance visual acuity of 20/30 (0.18 logMAR) or better in each eye with the study contact lenses. * Has clear corneas and no active ocular disease * Has read, understood and signed the information consent letter * Patient contact lens refraction should fit within the available parameters of the study lenses * Is willing to comply with the wear schedule * Is willing to comply with the visit schedule

Exclusion criteria

* Has never worn contact lenses before. * Currently wears rigid gas permeable contact lenses. * Has a history of not achieving comfortable CL wear (5 days per week; \> 8 hours/day) * Has a CL prescription outside the range of - 1.00 to -10.00D * Has a spectacle cylinder ≥1.00D of cylinder in either eye. * Has contact lens best corrected distance vision worse than 20/25 (0.10 logMAR) in either eye. * Presence of clinically significant (grade 2-4) anterior segment abnormalities. * Presence of ocular or systemic disease or need of medications which might interfere with contact lens wear. * Slit lamp findings that would contraindicate contact lens wear such as: * Pathological dry eye or associated findings * Pterygium, pinguecula, or corneal scars within the visual axis * Neovascularization \> 0.75 mm in from of the limbus * Giant papillary conjunctivitis (GCP) worse than grade 1 * Anterior uveitis or iritis (past or present) * Seborrheic eczema, Seborrheic conjunctivitis * History of corneal ulcers or fungal infections * Poor personal hygiene * Has a known history of corneal hypoesthesia (reduced corneal sensitivity) * Has aphakia, keratoconus or a highly irregular cornea. * Has Presbyopia or has dependence on spectacles for near work over the contact lenses. * Has undergone corneal refractive surgery. * Is participating in any other type of eye related clinical or research study.

Design outcomes

Primary

MeasureTime frameDescription
Participant's Subjective Rating for Lens Handling - Enfilcon A / Ocufilcon D1 hour post settlingSurveyed after 1 hour of lens wear for each lens at lens removal for Pair #2 (1 hour). Rated by questionnaires (0=Very difficult 0-100, 100= very easy).
Participant's Subjective Rating for Lens Handling - Enfilcon A / Omafilcon A1 hour post settlingSurveyed after 1 hour of lens wear for each lens at lens removal Pair #1 (1 hour). Rated by questionnaires (0= Very difficult 0-100, 100= very easy).
Participant's Subjective Rating for Lens Handling - Enfilcon A / Methafilcon A1 hour post settlingSurveyed after 1 hour of lens wear for each lens at lens removal Pair #3. Rated by questionnaires (0-100 0=Very difficult, 100= very easy).
Participants Subjective Rating for Lens Comfort - Enfilcon A / Ocufilcon DBaselineSurveyed after insertion of each lens Pair #2 (at insertion). Rated by Questionnaire (0-100,0=Can't be worn and causes pain, 100=can't feel).
Participant's Subjective Rating for Lens Comfort - Enfilcon A / Omafilcon ABaselineSurveyed after insertion of each lens at baseline visit for Pair #1. Rated by questionnaires (0-100, 0-Can't be worn and causes pain,100= can't feel).
Participant's Subjective Rating for Lens Comfort - Enfilcon A / Methafilcon ABaselineSurveyed after insertion Pair #3 (baseline). Rated by questionnaires (0-100, 0-Can't be worn, 100= can't feel).
Participant's Subjective Rating for Lens Comfort - Enfilcon A / Ocufilcon D1 hour post settlingSurveyed after 1 hour post settling for Pair #2. Rated by questionnaires (0-100 0=Can't be worn and causes pain, 100= can't feel).
Participants Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon ABaselineSurveyed after insertion of each lens Pair #1 at (Baseline visit). Rated by questionnaire (4 possible ratings: Strong Enfilcon A, Slight Enfilcon A, No preference, Slight Omafilcon A, Strong Omafilcon A).
Participants Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DBaselineSurveyed at insertion of each lens Pair #2 by questionnaire (4 possible ratings: Strong Enfilcon A, Slight Enfilcon A, No preference, Slight Ocufilcon D, Strong Ocufilcon D).
Participants Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon ABaselineSurveyed after insertion of each lens for Pair #3. Rated by questionnaire (4 possible ratings: Strong Enfilcon A, Slight Enfilcon A, No preference, Slight Methafilcon A, Strong Methafilcon A).
Participant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon A1 hour post settlingSurveyed after 1 hour post settling (1 hour) of lens wear for Pair #1. Rated by subjects preference for test lens or control lens (Strong Enfilcon A, Slight Enfilcon A, No preference, Slight Omafilcon A, Strong Omafilcon A).
Participant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon D1 hour post settlingSurveyed after 1 hour post settling for Pair #2. Rated by questionnaire (4 possible ratings: Strong Enfilcon A, Slight Enfilcon A, No preference, Slight Ocufilcon D, Strong Ocufilcon D).
Participant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon A1 hour post settlingSurveyed after 1 hour post settling for Pair #3. Rated by questionnaire (4 possible ratings: Strong Enfilcon A, Slight Enfilcon A, No preference, Slight Methafilcon A, Strong Methafilcon A).
Eye Care Practitioner's Objective Assessment of Lens Fit, Post-blink Movement, and Primary Gaze Lag - Enfilcon A / Omafilcon A1 hour post settlingAssessed after 1 hour post settling of lens wear for Pair #1. Slit lamp (0-4, 0=Insufficient, unacceptable movement, 1=Minimal, but acceptable movement, 2=Optimal movement, 3=Moderate, but acceptable movement, 4=Excessive, unacceptable movement)
Eye Care Practitioner's Objective Assessment of Lens Fit, Post-blink Movement, and Primary Gaze Lag - Enfilcon A / Ocufilcon D1 hour post settlingAssessed after 1 hour post settling for Pair #2. (0-4, 0=Insufficient, unacceptable movement, 1=Minimal, but acceptable movement, 2=Optimal movement, 3=Moderate, but acceptable movement, 4=Excessive, unacceptable movement)
Eye Care Practitioner's Objective Assessment of Lens Fit, Post-blink Movement, and Primary Gaze Lag - Enfilcon A / Methafilcon A1 hour post settlingAssessed after 1 hour post settling for Pair #3. (0-4, 0=Insufficient, unacceptable movement, 1=Minimal, but acceptable movement, 2=Optimal movement, 3=Moderate, but acceptable movement, 4=Excessive, unacceptable movement)
Eye Care Practitioner's Objective Assessment of Lens Fit, Tightness Push-up Test - Enfilcon A / Omafilcon A1 hour post settlingAssessed after 1 hour post settling of lens wear for Pair #1. Slit lamp. (0%-100%, continuous scale where 100%=no movement, 50%=optimum, 0%=Falls from cornea without lid support).
Eye Care Practitioner's Objective Assessment of Lens Fit, Tightness Push-up Test - Enfilcon A / Ocufilcon D1 hour post settlingAssessed after 1 hour post settling for Pair #2, (0%-100%, continuous scale where 100%=no movement, 50%=optimum, 0%=Falls from cornea without lid support).
Eye Care Practitioner's Objective Assessment of Lens Fit, Tightness Push-up Test - Enfilcon A / Methafilcon A1 hour post settlingAssessed after 1 hour post settling for Pair #3. (Scale 0%-100%, 0%-100%, continuous scale where 100%=no movement, 50%=optimum, 0%=Falls from cornea without lid support)
Eye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Omafilcon A1 hour post settlingAssessed after 1 hour post settling of lens wear for Pair #1. (4 possible ratings: optimum, Decentration acceptable, Decentration unacceptable).
Eye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Ocufilcon D1 hour post settlingAssessed after 1 hour post settling for Pair #2. (4 possible ratings: optimum, Decentration acceptable, Decentration unacceptable)
Eye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Methafilcon A1 hour post settlingAssessed after 1 hour post settling for Pair #3, (4 possible ratings: optimum, Decentration acceptable, Decentration unacceptable)
Participant's Subjective Rating for Stinging/Burning - Enfilcon A / Omafilcon ABaselineSurveyed after insertion of each lens for Pair #1 at baseline visit. Rated by questionnaires (0-100, 0=no sensation of stinging/burning, 100= extreme stinging).
Participant Subjective Rating for Stinging/Burning - Enfilcon A / Ocufilcon DBaselineSurveyed after insertion of each lens Pair #2 at baseline. Rated by questionnaires (0-100,0=no sensation of stinging/burning 100=extreme stinging)
Participant Subjective Rating for Stinging/Burning - Enfilcon A / Methafilcon ABaselineSurveyed after insertion of each lens for Pair #3. Rated by questionnaires (0-100,0=no sensation of stinging/burning, 100=extreme stinging).
Participants Subjective Rating for Stinging/Burning - Enfilcon A / Omafilcon A1 hour post settlingSurveyed after 1 hour of lens wear for each lens at lens removal Pair #1. Rated by questionnaires (0-100,0=no sensation of stinging/burning 100=extreme stinging).
Participant's Subjective Rating for Stinging/Burning - Enfilcon A / Ocufilcon D1 hour post settlingSurveyed after 1 hour post settling for Pair #2. Rated by questionnaires (0-100,0= no sensation of stinging/burning, 100= extreme stinging).
Participant's Subjective Rating for Stinging/Burning - Enfilcon A / Methafilcon A1 hour post settlingSurveyed after 1 hour post settling for Pair #3. Rated by questionnaires (0-100,0= no sensation of stinging/burning,100= extreme stinging).
Eye Care Practitioner's Objective Assessment of Binocular High Contrast Distance Visual Acuity - Enfilcon A / Omafilcon A1 hour post settlingVisual acuity assessed after insertion of each study lens, prior to dispensing contralateral pairs Pair #1. LogMAR Visual Acuity (VA) to nearest letter)
Eye Care Practitioner's Objective Assessment of Binocular High Contrast Distance Visual Acuity - Enfilcon A / Ocufilcon D1 hour post settlingVisual acuity assessed after insertion of each study lens, prior to dispensing contralateral pairs- Pair #2. LogMAR Visual Acuity (VA) to nearest letter)
Eye Care Practitioner's Objective Assessment of Binocular High Contrast Distance Visual Acuity - Enfilcon A / Methafilcon A1 hour post settlingVisual acuity assessed after insertion of each study lens, prior to dispensing contralateral pairs- Pair #3. LogMAR Visual Acuity (VA) to nearest letter)

Countries

Spain

Participant flow

Pre-assignment details

There were 60 subjects enrolled and fitted with the study lenses. All sixty subjects completed the trial (i.e. no discontinuations).

Participants by arm

ArmCount
Enfilcon A / Omafilcon A/Ocufilcon D/Methafilcon A
Participants wear a pair of lenses, with a test lens in one eye and a control lens in the contra lateral eye. After approximately 1 hour of lens wear, the lenses will be removed and the next pair will be inserted. This will be repeated for a total of three pairs of lenses. Contralateral pair of study lenses. Test lens (enfilcon A) in one eye and a control lens (omafilcon A) in the contra lateral eye. Test lens (enfilcon A) in one eye and a control lens (ocufilcon D) in the contralateral eye. Test lens (enfilcon A) in one eye and a control lens (methafilcon A) in the contra lateral eye.
60
Total60

Baseline characteristics

CharacteristicEnfilcon A / Omafilcon A/Ocufilcon D/Methafilcon A
Age, Continuous25.78 years
STANDARD_DEVIATION 5.34
Sex: Female, Male
Female
34 Participants
Sex: Female, Male
Male
26 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
0 / 600 / 600 / 60
serious
Total, serious adverse events
0 / 600 / 600 / 60

Outcome results

Primary

Eye Care Practitioner's Objective Assessment of Binocular High Contrast Distance Visual Acuity - Enfilcon A / Methafilcon A

Visual acuity assessed after insertion of each study lens, prior to dispensing contralateral pairs- Pair #3. LogMAR Visual Acuity (VA) to nearest letter)

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AEye Care Practitioner's Objective Assessment of Binocular High Contrast Distance Visual Acuity - Enfilcon A / Methafilcon A-0.041 LogMARStandard Deviation 0.049
Omafilcon AEye Care Practitioner's Objective Assessment of Binocular High Contrast Distance Visual Acuity - Enfilcon A / Methafilcon A-0.043 LogMARStandard Deviation 0.05
Primary

Eye Care Practitioner's Objective Assessment of Binocular High Contrast Distance Visual Acuity - Enfilcon A / Ocufilcon D

Visual acuity assessed after insertion of each study lens, prior to dispensing contralateral pairs- Pair #2. LogMAR Visual Acuity (VA) to nearest letter)

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AEye Care Practitioner's Objective Assessment of Binocular High Contrast Distance Visual Acuity - Enfilcon A / Ocufilcon D-0.041 LogMARStandard Deviation 0.049
Omafilcon AEye Care Practitioner's Objective Assessment of Binocular High Contrast Distance Visual Acuity - Enfilcon A / Ocufilcon D-0.040 LogMARStandard Deviation 0.049
Primary

Eye Care Practitioner's Objective Assessment of Binocular High Contrast Distance Visual Acuity - Enfilcon A / Omafilcon A

Visual acuity assessed after insertion of each study lens, prior to dispensing contralateral pairs Pair #1. LogMAR Visual Acuity (VA) to nearest letter)

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AEye Care Practitioner's Objective Assessment of Binocular High Contrast Distance Visual Acuity - Enfilcon A / Omafilcon A-0.041 LogMARStandard Deviation 0.049
Omafilcon AEye Care Practitioner's Objective Assessment of Binocular High Contrast Distance Visual Acuity - Enfilcon A / Omafilcon A-0.035 LogMARStandard Deviation 0.055
Primary

Eye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Methafilcon A

Assessed after 1 hour post settling for Pair #3, (4 possible ratings: optimum, Decentration acceptable, Decentration unacceptable)

Time frame: 1 hour post settling

ArmMeasureGroupValue (NUMBER)
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Methafilcon AOptimum100 percentage of eyes
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Methafilcon ADecentration acceptable0 percentage of eyes
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Methafilcon ADecentration unacceptable0 percentage of eyes
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Methafilcon AOptimum100 percentage of eyes
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Methafilcon ADecentration acceptable0 percentage of eyes
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Methafilcon ADecentration unacceptable0 percentage of eyes
Primary

Eye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Ocufilcon D

Assessed after 1 hour post settling for Pair #2. (4 possible ratings: optimum, Decentration acceptable, Decentration unacceptable)

Time frame: 1 hour post settling

ArmMeasureGroupValue (NUMBER)
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Ocufilcon DOptimum100 percentage of eyes
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Ocufilcon DDecentration Acceptable0 percentage of eyes
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Ocufilcon DDecentration Unacceptable0 percentage of eyes
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Ocufilcon DOptimum100 percentage of eyes
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Ocufilcon DDecentration Acceptable0 percentage of eyes
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Ocufilcon DDecentration Unacceptable0 percentage of eyes
Primary

Eye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Omafilcon A

Assessed after 1 hour post settling of lens wear for Pair #1. (4 possible ratings: optimum, Decentration acceptable, Decentration unacceptable).

Time frame: 1 hour post settling

ArmMeasureGroupValue (NUMBER)
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Omafilcon AOptimum100 percentage of eyes
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Omafilcon ADecentration acceptable0 percentage of eyes
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Omafilcon ADecentration unacceptable0 percentage of eyes
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Omafilcon AOptimum100 percentage of eyes
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Omafilcon ADecentration acceptable0 percentage of eyes
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Centration - Enfilcon A / Omafilcon ADecentration unacceptable0 percentage of eyes
Primary

Eye Care Practitioner's Objective Assessment of Lens Fit, Post-blink Movement, and Primary Gaze Lag - Enfilcon A / Methafilcon A

Assessed after 1 hour post settling for Pair #3. (0-4, 0=Insufficient, unacceptable movement, 1=Minimal, but acceptable movement, 2=Optimal movement, 3=Moderate, but acceptable movement, 4=Excessive, unacceptable movement)

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Post-blink Movement, and Primary Gaze Lag - Enfilcon A / Methafilcon A2.0 units on a scaleStandard Deviation 0
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Post-blink Movement, and Primary Gaze Lag - Enfilcon A / Methafilcon A2.0 units on a scaleStandard Deviation 0
Primary

Eye Care Practitioner's Objective Assessment of Lens Fit, Post-blink Movement, and Primary Gaze Lag - Enfilcon A / Ocufilcon D

Assessed after 1 hour post settling for Pair #2. (0-4, 0=Insufficient, unacceptable movement, 1=Minimal, but acceptable movement, 2=Optimal movement, 3=Moderate, but acceptable movement, 4=Excessive, unacceptable movement)

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Post-blink Movement, and Primary Gaze Lag - Enfilcon A / Ocufilcon D2.0 units on a scaleStandard Deviation 0
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Post-blink Movement, and Primary Gaze Lag - Enfilcon A / Ocufilcon D2.0 units on a scaleStandard Deviation 0
Primary

Eye Care Practitioner's Objective Assessment of Lens Fit, Post-blink Movement, and Primary Gaze Lag - Enfilcon A / Omafilcon A

Assessed after 1 hour post settling of lens wear for Pair #1. Slit lamp (0-4, 0=Insufficient, unacceptable movement, 1=Minimal, but acceptable movement, 2=Optimal movement, 3=Moderate, but acceptable movement, 4=Excessive, unacceptable movement)

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Post-blink Movement, and Primary Gaze Lag - Enfilcon A / Omafilcon A2.0 units on a scaleStandard Deviation 0
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Post-blink Movement, and Primary Gaze Lag - Enfilcon A / Omafilcon A2.0 units on a scaleStandard Deviation 0
Primary

Eye Care Practitioner's Objective Assessment of Lens Fit, Tightness Push-up Test - Enfilcon A / Methafilcon A

Assessed after 1 hour post settling for Pair #3. (Scale 0%-100%, 0%-100%, continuous scale where 100%=no movement, 50%=optimum, 0%=Falls from cornea without lid support)

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Tightness Push-up Test - Enfilcon A / Methafilcon A50 units on a scaleStandard Deviation 0.91
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Tightness Push-up Test - Enfilcon A / Methafilcon A50 units on a scaleStandard Deviation 0.65
Primary

Eye Care Practitioner's Objective Assessment of Lens Fit, Tightness Push-up Test - Enfilcon A / Ocufilcon D

Assessed after 1 hour post settling for Pair #2, (0%-100%, continuous scale where 100%=no movement, 50%=optimum, 0%=Falls from cornea without lid support).

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Tightness Push-up Test - Enfilcon A / Ocufilcon D50 units on a scaleStandard Deviation 0.65
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Tightness Push-up Test - Enfilcon A / Ocufilcon D50 units on a scaleStandard Deviation 0.65
Primary

Eye Care Practitioner's Objective Assessment of Lens Fit, Tightness Push-up Test - Enfilcon A / Omafilcon A

Assessed after 1 hour post settling of lens wear for Pair #1. Slit lamp. (0%-100%, continuous scale where 100%=no movement, 50%=optimum, 0%=Falls from cornea without lid support).

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Tightness Push-up Test - Enfilcon A / Omafilcon A50 units on a scaleStandard Deviation 1.8
Omafilcon AEye Care Practitioner's Objective Assessment of Lens Fit, Tightness Push-up Test - Enfilcon A / Omafilcon A50 units on a scaleStandard Deviation 1.8
Primary

Participant's Subjective Rating for Lens Comfort - Enfilcon A / Methafilcon A

Surveyed after 1 hour post settling for Pair #3. Rated by questionnaires (0-100,0=Can't be worn and causes pain 100= can't feel).

Time frame: 1 hours post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipant's Subjective Rating for Lens Comfort - Enfilcon A / Methafilcon A96 units on a scaleStandard Deviation 6.7
Omafilcon AParticipant's Subjective Rating for Lens Comfort - Enfilcon A / Methafilcon A78 units on a scaleStandard Deviation 17.7
Primary

Participant's Subjective Rating for Lens Comfort - Enfilcon A / Methafilcon A

Surveyed after insertion Pair #3 (baseline). Rated by questionnaires (0-100, 0-Can't be worn, 100= can't feel).

Time frame: Baseline

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipant's Subjective Rating for Lens Comfort - Enfilcon A / Methafilcon A94 units on a scaleStandard Deviation 9.3
Omafilcon AParticipant's Subjective Rating for Lens Comfort - Enfilcon A / Methafilcon A76 units on a scaleStandard Deviation 18.7
Primary

Participant's Subjective Rating for Lens Comfort - Enfilcon A / Ocufilcon D

Surveyed after 1 hour post settling for Pair #2. Rated by questionnaires (0-100 0=Can't be worn and causes pain, 100= can't feel).

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipant's Subjective Rating for Lens Comfort - Enfilcon A / Ocufilcon D96 units on a scaleStandard Deviation 6.1
Omafilcon AParticipant's Subjective Rating for Lens Comfort - Enfilcon A / Ocufilcon D83 units on a scaleStandard Deviation 18.6
Primary

Participants Subjective Rating for Lens Comfort - Enfilcon A / Ocufilcon D

Surveyed after insertion of each lens Pair #2 (at insertion). Rated by Questionnaire (0-100,0=Can't be worn and causes pain, 100=can't feel).

Time frame: Baseline

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipants Subjective Rating for Lens Comfort - Enfilcon A / Ocufilcon D94 units on a scaleStandard Deviation 9.3
Omafilcon AParticipants Subjective Rating for Lens Comfort - Enfilcon A / Ocufilcon D82 units on a scaleStandard Deviation 18.6
Primary

Participant's Subjective Rating for Lens Comfort - Enfilcon A / Omafilcon A

Surveyed after insertion of each lens at baseline visit for Pair #1. Rated by questionnaires (0-100, 0-Can't be worn and causes pain,100= can't feel).

Time frame: Baseline

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipant's Subjective Rating for Lens Comfort - Enfilcon A / Omafilcon A94 units on a scaleStandard Deviation 8.5
Omafilcon AParticipant's Subjective Rating for Lens Comfort - Enfilcon A / Omafilcon A73 units on a scaleStandard Deviation 17
Primary

Participant's Subjective Rating for Lens Comfort - Enfilcon A / Omafilcon A

Surveyed after 1 hour post settling for Pair #1. Rated by questionnaires (0-100, 0= Can't be worn and causes pain, 100= can't feel).

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipant's Subjective Rating for Lens Comfort - Enfilcon A / Omafilcon A98 units on a scaleStandard Deviation 4.2
Omafilcon AParticipant's Subjective Rating for Lens Comfort - Enfilcon A / Omafilcon A76 units on a scaleStandard Deviation 16.4
Primary

Participant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon A

Surveyed after 1 hour post settling for Pair #3. Rated by questionnaire (4 possible ratings: Strong Enfilcon A, Slight Enfilcon A, No preference, Slight Methafilcon A, Strong Methafilcon A).

Time frame: 1 hour post settling

ArmMeasureGroupValue (NUMBER)
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon ASlight Enfilcon A22 percentage of subjects
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon ASlight Methafilcon A0 percentage of subjects
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon ANo Preference18 percentage of subjects
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon AStrong Methafilcon A0 percentage of subjects
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon AStrong Enfilcon A53 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon AStrong Methafilcon A0 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon AStrong Enfilcon A0 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon ASlight Enfilcon A0 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon ANo Preference0 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon ASlight Methafilcon A7 percentage of subjects
Primary

Participants Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon A

Surveyed after insertion of each lens for Pair #3. Rated by questionnaire (4 possible ratings: Strong Enfilcon A, Slight Enfilcon A, No preference, Slight Methafilcon A, Strong Methafilcon A).

Time frame: Baseline

ArmMeasureGroupValue (NUMBER)
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon ASlight Enfilcon A18.3 percentage of eyes
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon ASlight Methafilcon A0.0 percentage of eyes
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon ANo Preference18.3 percentage of eyes
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon AStrong Methfilcon A0.0 percentage of eyes
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon AStrong Enfilcon A55.0 percentage of eyes
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon AStrong Methfilcon A3.3 percentage of eyes
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon AStrong Enfilcon A0.0 percentage of eyes
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon ASlight Enfilcon A0.0 percentage of eyes
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon ANo Preference0.0 percentage of eyes
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Methafilcon ASlight Methafilcon A5.0 percentage of eyes
Primary

Participant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon D

Surveyed after 1 hour post settling for Pair #2. Rated by questionnaire (4 possible ratings: Strong Enfilcon A, Slight Enfilcon A, No preference, Slight Ocufilcon D, Strong Ocufilcon D).

Time frame: 1 hour post settling

ArmMeasureGroupValue (NUMBER)
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DSlight Enfilcon A18 percentage of subjects
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DSlight Ocufilcon D0 percentage of subjects
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DNo Preference35 percentage of subjects
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DStrong Ocufilcon D0 percentage of subjects
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DStrong Enfilcon A42 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DStrong Ocufilcon D0 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DStrong Enfilcon A0 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DSlight Enfilcon A0 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DNo Preference0 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DSlight Ocufilcon D5 percentage of subjects
Primary

Participants Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon D

Surveyed at insertion of each lens Pair #2 by questionnaire (4 possible ratings: Strong Enfilcon A, Slight Enfilcon A, No preference, Slight Ocufilcon D, Strong Ocufilcon D).

Time frame: Baseline

ArmMeasureGroupValue (NUMBER)
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DSlight Enfilcon A22 percentage of subjects
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DSlight Ocufilcon D0 percentage of subjects
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DNo Preference35 percentage of subjects
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DStrong Ocufilcon D0 percentage of subjects
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DStrong Enfilcon A38 percentage of subjects
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DStrong Ocufilcon D0 percentage of subjects
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DStrong Enfilcon A0 percentage of subjects
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DSlight Enfilcon A0 percentage of subjects
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DNo Preference0 percentage of subjects
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Ocufilcon DSlight Ocufilcon D5 percentage of subjects
Primary

Participant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon A

Surveyed after 1 hour post settling (1 hour) of lens wear for Pair #1. Rated by subjects preference for test lens or control lens (Strong Enfilcon A, Slight Enfilcon A, No preference, Slight Omafilcon A, Strong Omafilcon A).

Time frame: 1 hour post settling

ArmMeasureGroupValue (NUMBER)
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon ASlight Enfilcon A20 percentage of subjects
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon ASlight Omafilcon A0 percentage of subjects
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon ANo preference13 percentage of subjects
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon AStrong Omafilcon A0 percentage of subjects
Enfilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon AStrong Enfilcon A67 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon AStrong Omafilcon A0 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon AStrong Enfilcon A0 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon ASlight Enfilcon A0 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon ANo preference0 percentage of subjects
Omafilcon AParticipant's Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon ASlight Omafilcon A0 percentage of subjects
Primary

Participants Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon A

Surveyed after insertion of each lens Pair #1 at (Baseline visit). Rated by questionnaire (4 possible ratings: Strong Enfilcon A, Slight Enfilcon A, No preference, Slight Omafilcon A, Strong Omafilcon A).

Time frame: Baseline

ArmMeasureGroupValue (NUMBER)
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon ANo Preference10.0 percentage of subjects
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon ASlight Omafilcon A0.0 percentage of subjects
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon AStrong Omafilcon A0.0 percentage of subjects
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon AStrong Enfilcon A66.7 percentage of subjects
Enfilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon ASlight Enfilcon A16.7 percentage of subjects
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon ASlight Enfilcon A0.0 percentage of subjects
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon AStrong Enfilcon A0.0 percentage of subjects
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon ASlight Omafilcon A6.7 percentage of subjects
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon ANo Preference0.0 percentage of subjects
Omafilcon AParticipants Subjective Rating for Lens Comfort Preference - Enfilcon A / Omafilcon AStrong Omafilcon A0.0 percentage of subjects
Primary

Participant's Subjective Rating for Lens Handling - Enfilcon A / Methafilcon A

Surveyed after 1 hour of lens wear for each lens at lens removal Pair #3. Rated by questionnaires (0-100 0=Very difficult, 100= very easy).

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipant's Subjective Rating for Lens Handling - Enfilcon A / Methafilcon A97 units on a scaleStandard Deviation 6.5
Omafilcon AParticipant's Subjective Rating for Lens Handling - Enfilcon A / Methafilcon A86 units on a scaleStandard Deviation 17.7
Primary

Participant's Subjective Rating for Lens Handling - Enfilcon A / Ocufilcon D

Surveyed after 1 hour of lens wear for each lens at lens removal for Pair #2 (1 hour). Rated by questionnaires (0=Very difficult 0-100, 100= very easy).

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipant's Subjective Rating for Lens Handling - Enfilcon A / Ocufilcon D96 units on a scaleStandard Deviation 8.9
Omafilcon AParticipant's Subjective Rating for Lens Handling - Enfilcon A / Ocufilcon D90 units on a scaleStandard Deviation 13.7
Primary

Participant's Subjective Rating for Lens Handling - Enfilcon A / Omafilcon A

Surveyed after 1 hour of lens wear for each lens at lens removal Pair #1 (1 hour). Rated by questionnaires (0= Very difficult 0-100, 100= very easy).

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipant's Subjective Rating for Lens Handling - Enfilcon A / Omafilcon A97 units on a scaleStandard Deviation 8.2
Omafilcon AParticipant's Subjective Rating for Lens Handling - Enfilcon A / Omafilcon A84 units on a scaleStandard Deviation 20.2
Primary

Participant's Subjective Rating for Stinging/Burning - Enfilcon A / Methafilcon A

Surveyed after 1 hour post settling for Pair #3. Rated by questionnaires (0-100,0= no sensation of stinging/burning,100= extreme stinging).

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipant's Subjective Rating for Stinging/Burning - Enfilcon A / Methafilcon A1.2 units on a scaleStandard Deviation 3.2
Omafilcon AParticipant's Subjective Rating for Stinging/Burning - Enfilcon A / Methafilcon A13 units on a scaleStandard Deviation 18.7
Primary

Participant's Subjective Rating for Stinging/Burning - Enfilcon A / Ocufilcon D

Surveyed after 1 hour post settling for Pair #2. Rated by questionnaires (0-100,0= no sensation of stinging/burning, 100= extreme stinging).

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipant's Subjective Rating for Stinging/Burning - Enfilcon A / Ocufilcon D1.4 units on a scaleStandard Deviation 3.5
Omafilcon AParticipant's Subjective Rating for Stinging/Burning - Enfilcon A / Ocufilcon D8.8 units on a scaleStandard Deviation 13.9
Primary

Participant's Subjective Rating for Stinging/Burning - Enfilcon A / Omafilcon A

Surveyed after insertion of each lens for Pair #1 at baseline visit. Rated by questionnaires (0-100, 0=no sensation of stinging/burning, 100= extreme stinging).

Time frame: Baseline

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipant's Subjective Rating for Stinging/Burning - Enfilcon A / Omafilcon A2.6 units on a scaleStandard Deviation 6
Omafilcon AParticipant's Subjective Rating for Stinging/Burning - Enfilcon A / Omafilcon A18 units on a scaleStandard Deviation 22.6
Primary

Participants Subjective Rating for Stinging/Burning - Enfilcon A / Omafilcon A

Surveyed after 1 hour of lens wear for each lens at lens removal Pair #1. Rated by questionnaires (0-100,0=no sensation of stinging/burning 100=extreme stinging).

Time frame: 1 hour post settling

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipants Subjective Rating for Stinging/Burning - Enfilcon A / Omafilcon A0.6 units on a scaleStandard Deviation 2.3
Omafilcon AParticipants Subjective Rating for Stinging/Burning - Enfilcon A / Omafilcon A8.8 units on a scaleStandard Deviation 13.4
Primary

Participant Subjective Rating for Stinging/Burning - Enfilcon A / Methafilcon A

Surveyed after insertion of each lens for Pair #3. Rated by questionnaires (0-100,0=no sensation of stinging/burning, 100=extreme stinging).

Time frame: Baseline

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipant Subjective Rating for Stinging/Burning - Enfilcon A / Methafilcon A2.0 units on a scaleStandard Deviation 4
Omafilcon AParticipant Subjective Rating for Stinging/Burning - Enfilcon A / Methafilcon A15 units on a scaleStandard Deviation 19.8
Primary

Participant Subjective Rating for Stinging/Burning - Enfilcon A / Ocufilcon D

Surveyed after insertion of each lens Pair #2 at baseline. Rated by questionnaires (0-100,0=no sensation of stinging/burning 100=extreme stinging)

Time frame: Baseline

ArmMeasureValue (MEAN)Dispersion
Enfilcon AParticipant Subjective Rating for Stinging/Burning - Enfilcon A / Ocufilcon D3.3 units on a scaleStandard Deviation 9.5
Omafilcon AParticipant Subjective Rating for Stinging/Burning - Enfilcon A / Ocufilcon D11 units on a scaleStandard Deviation 20.3

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026