Contact Lens Optics and Visual Performance

David A Berntsen, OD PhD24 enrolled

Overview

This study will evaluate changes in visual performance at different pupil sizes between a single vision soft contact lens and multifocal soft contact lens, and compare refractive error measured between these two lenses with an autorefractor and an aberrometer

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

OTHER

Masking

SINGLE

Enrollment

Conditions

Myopia

Interventions

Single vision contact lensDEVICE

Subjects will wear a single vision soft contact lens only during the study visit

Multifocal contact lensDEVICE

Subjects will wear a multifocal soft contact lens only during the study visit

Eligibility

Sex: ALLMin age: 18 YearsMax age: 39 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Able to read and understand the informed consent document * 18 to 39 years of age (inclusive) * Best corrected visual acuity of 20/25 or better in the right eye * Refractive error from -1.00D to -8.00D with astigmatism less than or equal to -1.00D in the right eye (corneal plane) Exclusion Criteria: * Any ocular or systemic conditions 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 * Pregnant and/or lactating females, by self-report

Locations (1)

University of Houston

Houston, Texas, United States

Outcomes

Primary Outcomes

Visual performance

Low contrast visual performance will be measured at different pupil sizes for each subject while wearing each of the two lenses

Time frame: Through completion of study visit, an average of 3 hours

Secondary Outcomes

Refractive error

Refractive error will be measured with an autorefractor and an aberrometer with subjects wearing each of the two lenses

Time frame: Through completion of study visit, an average of 3 hours

Data from ClinicalTrials.gov

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