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Ocular Responses to Short and Long-term Lens Wear

Ocular Responses to Acute and Chronic Lens Wear

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00722891
Enrollment
30
Registered
2008-07-28
Start date
2008-07-31
Completion date
2009-09-30
Last updated
2019-11-26

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

Conditions

Ametropia

Keywords

Eye Diseases

Brief summary

The purpose of this study was to determine whether ocular surface sensitivity to pneumatic, mechanical and chemical stimulation would be affected by the use of the combination of a specific silicone hydrogel lens material with two lens care products over a four week period.

Interventions

DEVICEPurevision Lenses with ReNu Multiplus

Purevision lenses using ReNu Multiplus lens solution for 28 days

DEVICEPurevision Lenses with Optifree RepleniSH

Purevision lenses using Optifree RepleniSH lens solution for 28 days

Sponsors

Bausch & Lomb Incorporated
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
17 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Is at least 17 years old and has full legal capacity to volunteer; * Is correctable to a visual acuity of 6/7.5 (20/25) or better (both eyes) with their habitual vision correction; * Is a current soft lens wearer and wears contact lenses six or more days/week; * Has clear corneas and no active ocular disease.

Exclusion criteria

* Has any clinically significant blepharitis or dry eye; * Has undergone corneal refractive surgery; * Is aphakic; * Has any active ocular disease; * Has any systemic disease affecting ocular health; * Is using any systemic or topical medications that may affect ocular health;

Design outcomes

Primary

MeasureTime frame
Quantify the ocular response to acute and chronic lens wear using slit lamp examination, tear assay and corneal sensitivity.5 months

Countries

Canada

Outcome results

None listed

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