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Clinical Comparison of Toric Contact Lenses Fit Characteristics

Clinical Comparison of Toric Contact Lenses Fit Characteristics

Status
Withdrawn
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05805345
Enrollment
0
Registered
2023-04-10
Start date
2023-04-30
Completion date
2023-05-31
Last updated
2023-05-19

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

Conditions

Astigmatism, Refractive Errors

Keywords

Contact Lenses

Brief summary

The purpose of this study is to compare the fit characteristics between four Alcon commercially available toric contact lenses.

Detailed description

Subjects will be expected to attend 3 visits including the screening visit. The total duration of a subject's participation in the study will be approximately 19 days.

Interventions

DEVICEDelefilcon A toric soft contact lens

Commercially available silicone hydrogel contact lens

DEVICELehfilcon A toric soft contact lens

Commercially available silicone hydrogel contact lens

DEVICELotrafilcon B toric soft contact lens

Commercially available silicone hydrogel contact lens

DEVICEVerofilcon A toric soft contact lens

Commercially available silicone hydrogel contact lens

Sponsors

Alcon Research
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

Key Inclusion Criteria: * Successful wear of toric soft contact lenses in both eyes for a minimum of 5 days per week and 10 hours per day during the past 3 months. * Able to be fit with contact lenses within the available range of sphere, cylinder power, and axes (based on lens availability). * Best Corrected Visual Acuity (BCVA) better than or equal to 0.10 (logMAR) in each eye. * Willing to stop wearing habitual contact lenses during in-office visits. * Other protocol-defined inclusion criteria may apply. Key

Exclusion criteria

* Current spherical, monovision or multifocal lens wearer. * Protocol-specified biomicroscopy findings at screening. * Current or history of herpetic keratitis in either eye. * Participation in a clinical trial within the previous 30 days or currently enrolled in any clinical trial. * Other protocol-defined

Design outcomes

Primary

MeasureTime frameDescription
Distance VA with study lenses30 mins (± 15 mins), each productVisual Acuity (VA) will be assessed using letter charts with study lenses in place and reported in logarithm minimum angle of resolution (logMAR). A logMAR value of 0.0 equates to 20/20 Snellen, which is considered normal distance eyesight. Eyes will be assessed individually.

Countries

United States

Outcome results

None listed

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