Evaluating Contact Lens Optics

David A Berntsen, OD PhD

Status: Completed

Conditions: Myopia

Treatments: Device: Multifocal contact lens; Device: Single vision contact lens

Study type: Interventional

Funder types: Other

Identifiers

NCT05028790

STUDY00002545

Details and patient eligibility

About

This study will evaluate changes in refractive error and visual performance between a single vision soft contact lens and multifocal soft contact lens

Enrollment: 16 patients

Sex: All

Ages: 18 to 39 years old

Volunteers: No Healthy Volunteers

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 -6.00D 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
• Unwilling to have contact lens fit photographed
• Pregnant and/or lactating females, by self-report

Trial design

Primary purpose: Other

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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16 participants in 2 patient groups

Single vision soft contact lens first, then multifocal soft contact lens

Experimental group

Description:

Participants wore the single vision soft contact lens first, then a multifocal soft contact lens

Treatment:

Device: Multifocal contact lens

Device: Single vision contact lens

Multifocal soft contact lens first, then single vision soft contact lens

Experimental group

Description:

Participants wore the multifocal soft contact lens first, then the single vision soft contact lens

Treatment:

Device: Multifocal contact lens

Device: Single vision contact lens