Contact Lens Optics and Visual Performance

David A Berntsen, OD PhD

Status: Completed

Conditions: Myopia

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

Study type: Interventional

Funder types: Other

Identifiers

NCT05308069

STUDY00003513

Details and patient eligibility

About

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

Enrollment: 24 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 -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

Trial design

Primary purpose: Other

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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24 participants in 2 patient groups

Single vision contact lens

Other group

Description:

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

Treatment:

Device: Single vision contact lens

Multifocal contact lens

Other group

Description:

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

Treatment:

Device: Multifocal contact lens