Evaluation of Visual Performance With Contact Lenses

University of Houston

Status: Completed

Conditions: Myopia

Treatments: Device: Multifocal Contact Lens 1; Device: Multifocal Contact Lens 2; Device: Single Vision Contact Lens

Study type: Observational

Funder types: Other

Identifiers

NCT03705130

STUDY00000958

Details and patient eligibility

About

This study will evaluate the influence of contact lens optical design on visual performance using standard and multifocal soft contact lenses (MFCLs).

Full description

The study will examine visual acuity with various contact lenses, with and without glare source, in myopes between the ages of 18-39 years old (inclusive) to determine the effect of different multifocal optical designs on visual performance in the post-fit period.

Enrollment: 26 patients

Sex: All

Ages: 18 to 39 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• 18 to 39 years of age
• Best corrected visual acuity of at least 20/30
• Spherical equivalent refractive error in each eye of between -0.75 and -6.00 diopters sphere after vertexing to the corneal plane

Exclusion criteria

• Greater than -1.00 diopter of refractive astigmatism at the corneal plane
• Any active anterior segment disease, pathology, or surgery affecting vision, refraction, or the ability to wear a soft contact lens
• History of ocular trauma or surgery causing abnormal or distorted vision
• Current Rigid Gas Permeable (RGP) contact lens wearers
• Unwilling to have eyes photographed or video recorded
• Pregnant and/or lactating females, by self-report

Trial design

26 participants in 1 patient group

Group 1

Description:

All subjects will wear the 3 contact lenses: Single Vision, Multifocal 1 and Multifocal 2.

Treatment:

Device: Single Vision Contact Lens

Device: Multifocal Contact Lens 2

Device: Multifocal Contact Lens 1